12031031154 has 16 divisors (see below), whose sum is σ = 25328486880. Its totient is φ = 3799272960.

The previous prime is 12031031113. The next prime is 12031031167. The reversal of 12031031154 is 45113013021.

It is a self number, because there is not a number n which added to its sum of digits gives 12031031154.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52767567 + ... + 52767794.

It is an arithmetic number, because the mean of its divisors is an integer number (1583030430).

Almost surely, 2^12031031154 is an apocalyptic number.

12031031154 is an abundant number, since it is smaller than the sum of its proper divisors (13297455726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12031031154 is a wasteful number, since it uses less digits than its factorization.

12031031154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105535385.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 12031031154 its reverse (45113013021), we get a palindrome (57144044175).

The spelling of 12031031154 in words is "twelve billion, thirty-one million, thirty-one thousand, one hundred fifty-four".