10431211312231 has 4 divisors (see below), whose sum is σ = 10574104617952. Its totient is φ = 10288318006512.

The previous prime is 10431211312219. The next prime is 10431211312261. The reversal of 10431211312231 is 13221311213401.

10431211312231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10431211312231 - 2²⁵ = 10431177757799 is a prime.

It is a super-2 number, since 2×10431211312231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10431211312196 and 10431211312205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10431211312211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71446652751 + ... + 71446652896.

It is an arithmetic number, because the mean of its divisors is an integer number (2643526154488).

Almost surely, 2^{10431211312231} is an apocalyptic number.

10431211312231 is a deficient number, since it is larger than the sum of its proper divisors (142893305721).

10431211312231 is an equidigital number, since it uses as much as digits as its factorization.

10431211312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142893305720.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 10431211312231 its reverse (13221311213401), we get a palindrome (23652522525632).

The spelling of 10431211312231 in words is "ten trillion, four hundred thirty-one billion, two hundred eleven million, three hundred twelve thousand, two hundred thirty-one".