1231032112331 has 16 divisors (see below), whose sum is σ = 1458675271680. Its totient is φ = 1016634205440.

The previous prime is 1231032112273. The next prime is 1231032112367. The reversal of 1231032112331 is 1332112301321.

It is not a de Polignac number, because 1231032112331 - 2⁶ = 1231032112267 is a prime.

It is a super-2 number, since 2×1231032112331² (a number of 25 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 = 1231032112297 and 1231032112306.

It is not an unprimeable number, because it can be changed into a prime (1231032112381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12446246 + ... + 12544763.

It is an arithmetic number, because the mean of its divisors is an integer number (91167204480).

Almost surely, 2^{1231032112331} is an apocalyptic number.

1231032112331 is a deficient number, since it is larger than the sum of its proper divisors (227643159349).

1231032112331 is a wasteful number, since it uses less digits than its factorization.

1231032112331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24991274.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1231032112331 its reverse (1332112301321), we get a palindrome (2563144413652).

The spelling of 1231032112331 in words is "one trillion, two hundred thirty-one billion, thirty-two million, one hundred twelve thousand, three hundred thirty-one".