1231032040311 has 32 divisors (see below), whose sum is σ = 1690391628288. Its totient is φ = 796580628480.

The previous prime is 1231032040291. The next prime is 1231032040319. The reversal of 1231032040311 is 1130402301321.

It is not a de Polignac number, because 1231032040311 - 2¹⁹ = 1231031516023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231032040319) 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, 8432935 + ... + 8577671.

It is an arithmetic number, because the mean of its divisors is an integer number (52824738384).

Almost surely, 2^{1231032040311} is an apocalyptic number.

1231032040311 is a deficient number, since it is larger than the sum of its proper divisors (459359587977).

1231032040311 is a wasteful number, since it uses less digits than its factorization.

1231032040311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145431.

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

Adding to 1231032040311 its reverse (1130402301321), we get a palindrome (2361434341632).

The spelling of 1231032040311 in words is "one trillion, two hundred thirty-one billion, thirty-two million, forty thousand, three hundred eleven".