231011023010121 has 6 divisors (see below), whose sum is σ = 333682588792410. Its totient is φ = 154007348673408.

The previous prime is 231011023010087. The next prime is 231011023010137. The reversal of 231011023010121 is 121010320110132.

231011023010121 is a `hidden beast` number, since 2 + 310 + 1 + 1 + 0 + 230 + 1 + 0 + 121 = 666.

It can be written as a sum of positive squares in only one way, i.e., 136604925971721 + 94406097038400 = 11687811^2 + 9716280^2 .

It is not a de Polignac number, because 231011023010121 - 2²⁵ = 231010989455689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231011023010094 and 231011023010103.

It is not an unprimeable number, because it can be changed into a prime (231011023030121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12833945722776 + ... + 12833945722793.

It is an arithmetic number, because the mean of its divisors is an integer number (55613764798735).

Almost surely, 2^{231011023010121} is an apocalyptic number.

It is an amenable number.

231011023010121 is a deficient number, since it is larger than the sum of its proper divisors (102671565782289).

231011023010121 is a wasteful number, since it uses less digits than its factorization.

231011023010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25667891445575 (or 25667891445572 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 231011023010121 its reverse (121010320110132), we get a palindrome (352021343120253).

The spelling of 231011023010121 in words is "two hundred thirty-one trillion, eleven billion, twenty-three million, ten thousand, one hundred twenty-one".