131023331004 has 12 divisors (see below), whose sum is σ = 305721105704. Its totient is φ = 43674443664.

The previous prime is 131023330951. The next prime is 131023331017. The reversal of 131023331004 is 400133320131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×131023331004² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5459305447 + ... + 5459305470.

Almost surely, 2^131023331004 is an apocalyptic number.

It is an amenable number.

131023331004 is an abundant number, since it is smaller than the sum of its proper divisors (174697774700).

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

131023331004 is a wasteful number, since it uses less digits than its factorization.

131023331004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10918610924 (or 10918610922 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 131023331004 its reverse (400133320131), we get a palindrome (531156651135).

The spelling of 131023331004 in words is "one hundred thirty-one billion, twenty-three million, three hundred thirty-one thousand, four".