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121102211123131 = 773236990628421
BaseRepresentation
bin11011100010010001001110…
…010001101000011110111011
3120212210020222022110111101111
4123202101032101220132323
5111333114312021420011
61105321330542301151
734336226454145630
oct3342211621503673
9525706868414344
10121102211123131
1135650183061797
12116ba5055877b7
135275b7432c414
1421c954206c187
15e0022e2be121
hex6e244e4687bb

121102211123131 has 8 divisors (see below), whose sum is σ = 140298452025824. Its totient is φ = 102379951477440.

The previous prime is 121102211123071. The next prime is 121102211123141. The reversal of 121102211123131 is 131321112201121.

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

It is not a de Polignac number, because 121102211123131 - 211 = 121102211121083 is a prime.

It is a super-2 number, since 2×1211022111231312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121102211123141) 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, 118495313700 + ... + 118495314721.

It is an arithmetic number, because the mean of its divisors is an integer number (17537306503228).

Almost surely, 2121102211123131 is an apocalyptic number.

121102211123131 is a deficient number, since it is larger than the sum of its proper divisors (19196240902693).

121102211123131 is an equidigital number, since it uses as much as digits as its factorization.

121102211123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236990628501.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 121102211123131 its reverse (131321112201121), we get a palindrome (252423323324252).

The spelling of 121102211123131 in words is "one hundred twenty-one trillion, one hundred two billion, two hundred eleven million, one hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 7 73 511 236990628421 1658934398947 17300315874733 121102211123131