1232031000311 has 4 divisors (see below), whose sum is σ = 1304503412112. Its totient is φ = 1159558588512.

The previous prime is 1232031000269. The next prime is 1232031000337. The reversal of 1232031000311 is 1130001302321.

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

It is a de Polignac number, because none of the positive numbers 2^k-1232031000311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 72472411783 = 1232031000311 / (1 + 2 + 3 + 2 + 0 + 3 + 1 + 0 + 0 + 0 + 3 + 1 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1232031000311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232031002311) 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, 36236205875 + ... + 36236205908.

It is an arithmetic number, because the mean of its divisors is an integer number (326125853028).

Almost surely, 2^{1232031000311} is an apocalyptic number.

1232031000311 is a deficient number, since it is larger than the sum of its proper divisors (72472411801).

1232031000311 is an equidigital number, since it uses as much as digits as its factorization.

1232031000311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72472411800.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1232031000311 its reverse (1130001302321), we get a palindrome (2362032302632).

The spelling of 1232031000311 in words is "one trillion, two hundred thirty-two billion, thirty-one million, three hundred eleven", and thus it is an aban number.