231044342121 has 6 divisors (see below), whose sum is σ = 333730716410. Its totient is φ = 154029561408.

The previous prime is 231044342107. The next prime is 231044342161. The reversal of 231044342121 is 121243440132.

231044342121 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 443 + 4 + 212 + 1 = 666.

231044342121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 143747139600 + 87297202521 = 379140^2 + 295461^2 .

It is not a de Polignac number, because 231044342121 - 2⁶ = 231044342057 is a prime.

It is a super-2 number, since 2×231044342121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231044342161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12835796776 + ... + 12835796793.

Almost surely, 2^231044342121 is an apocalyptic number.

It is an amenable number.

231044342121 is a deficient number, since it is larger than the sum of its proper divisors (102686374289).

231044342121 is a wasteful number, since it uses less digits than its factorization.

231044342121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25671593575 (or 25671593572 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 231044342121 its reverse (121243440132), we get a palindrome (352287782253).

The spelling of 231044342121 in words is "two hundred thirty-one billion, forty-four million, three hundred forty-two thousand, one hundred twenty-one".