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121202313230131 = 756543306220331
BaseRepresentation
bin11011100011101110011100…
…110100110111011100110011
3120220010211100121020102002221
4123203232130310313130303
5111341234314141331011
61105435323554021511
734346402211053320
oct3343563464673463
9526124317212087
10121202313230131
1135689681098341
12117159a1577897
13528243803c6b3
1421d031a8abb47
15e02b3c477971
hex6e3b9cd37733

121202313230131 has 8 divisors (see below), whose sum is σ = 138519379620864. Its totient is φ = 103885859393160.

The previous prime is 121202313229999. The next prime is 121202313230137. The reversal of 121202313230131 is 131032313202121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121202313230131 - 217 = 121202313099059 is a prime.

It is a super-3 number, since 3×1212023132301313 (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121202313230096 and 121202313230105.

It is not an unprimeable number, because it can be changed into a prime (121202313230137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152714365 + ... + 153505966.

It is an arithmetic number, because the mean of its divisors is an integer number (17314922452608).

Almost surely, 2121202313230131 is an apocalyptic number.

121202313230131 is a deficient number, since it is larger than the sum of its proper divisors (17317066390733).

121202313230131 is an equidigital number, since it uses as much as digits as its factorization.

121202313230131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306276881.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121202313230131 its reverse (131032313202121), we get a palindrome (252234626432252).

The spelling of 121202313230131 in words is "one hundred twenty-one trillion, two hundred two billion, three hundred thirteen million, two hundred thirty thousand, one hundred thirty-one".

Divisors: 1 7 56543 395801 306220331 2143542317 17314616175733 121202313230131