12031111401 has 16 divisors (see below), whose sum is σ = 16497441600. Its totient is φ = 7793350848.

The previous prime is 12031111373. The next prime is 12031111441. The reversal of 12031111401 is 10411113021.

It is not a de Polignac number, because 12031111401 - 2⁵ = 12031111369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12031111441) 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, 8695 + ... + 155363.

It is an arithmetic number, because the mean of its divisors is an integer number (1031090100).

Almost surely, 2^12031111401 is an apocalyptic number.

It is an amenable number.

12031111401 is a deficient number, since it is larger than the sum of its proper divisors (4466330199).

12031111401 is a wasteful number, since it uses less digits than its factorization.

12031111401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147448.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 12031111401 its reverse (10411113021), we get a palindrome (22442224422).

The spelling of 12031111401 in words is "twelve billion, thirty-one million, one hundred eleven thousand, four hundred one".