231230012021031 has 32 divisors (see below), whose sum is σ = 317698890612480. Its totient is φ = 149527798675200.

The previous prime is 231230012020963. The next prime is 231230012021033. The reversal of 231230012021031 is 130120210032132.

It is not a de Polignac number, because 231230012021031 - 2¹⁸ = 231230011758887 is a prime.

It is a super-3 number, since 3×231230012021031³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 231230012020989 and 231230012021007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231230012021033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92533816 + ... + 94999826.

It is an arithmetic number, because the mean of its divisors is an integer number (9928090331640).

Almost surely, 2^{231230012021031} is an apocalyptic number.

231230012021031 is a deficient number, since it is larger than the sum of its proper divisors (86468878591449).

231230012021031 is a wasteful number, since it uses less digits than its factorization.

231230012021031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473167.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 231230012021031 its reverse (130120210032132), we get a palindrome (361350222053163).

The spelling of 231230012021031 in words is "two hundred thirty-one trillion, two hundred thirty billion, twelve million, twenty-one thousand, thirty-one".