12131024004 has 72 divisors (see below), whose sum is σ = 33464628288. Its totient is φ = 3674704320.

The previous prime is 12131023987. The next prime is 12131024027. The reversal of 12131024004 is 40042013121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1737729 + ... + 1744695.

It is an arithmetic number, because the mean of its divisors is an integer number (464786504).

Almost surely, 2^12131024004 is an apocalyptic number.

It is an amenable number.

12131024004 is an abundant number, since it is smaller than the sum of its proper divisors (21333604284).

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

12131024004 is a wasteful number, since it uses less digits than its factorization.

12131024004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11385 (or 11380 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12131024004 its reverse (40042013121), we get a palindrome (52173037125).

The spelling of 12131024004 in words is "twelve billion, one hundred thirty-one million, twenty-four thousand, four".