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121010010331 = 723751614971
BaseRepresentation
bin111000010110011000…
…0100011100011011011
3102120100101200110012111
41300230300203203123
53440312030312311
6131331412253151
711512512054640
oct1605460434333
9376311613174
10121010010331
1147357aa5901
121b5520111b7
13b54651aa12
145bdd53bdc7
1532339b2d21
hex1c2cc238db

121010010331 has 8 divisors (see below), whose sum is σ = 144310074624. Its totient is φ = 99213176040.

The previous prime is 121010010313. The next prime is 121010010343. The reversal of 121010010331 is 133010010121.

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 121010010331 - 25 = 121010010299 is a prime.

It is a super-2 number, since 2×1210100103312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121010010361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375807325 + ... + 375807646.

It is an arithmetic number, because the mean of its divisors is an integer number (18038759328).

Almost surely, 2121010010331 is an apocalyptic number.

121010010331 is a deficient number, since it is larger than the sum of its proper divisors (23300064293).

121010010331 is an equidigital number, since it uses as much as digits as its factorization.

121010010331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751615001.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 121010010331 its reverse (133010010121), we get a palindrome (254020020452).

The spelling of 121010010331 in words is "one hundred twenty-one billion, ten million, ten thousand, three hundred thirty-one".

Divisors: 1 7 23 161 751614971 5261304797 17287144333 121010010331