131023324500 has 48 divisors (see below), whose sum is σ = 381539925312. Its totient is φ = 34939552800.

The previous prime is 131023324483. The next prime is 131023324543. The reversal of 131023324500 is 5423320131.

It is a super-2 number, since 2×131023324500² (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 15 ways as a sum of consecutive naturals, for example, 43672942 + ... + 43675941.

It is an arithmetic number, because the mean of its divisors is an integer number (7948748444).

Almost surely, 2^131023324500 is an apocalyptic number.

131023324500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131023324500 is an abundant number, since it is smaller than the sum of its proper divisors (250516600812).

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

131023324500 is a wasteful number, since it uses less digits than its factorization.

131023324500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87348905 (or 87348893 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 131023324500 its reverse (5423320131), we get a palindrome (136446644631).

The spelling of 131023324500 in words is "one hundred thirty-one billion, twenty-three million, three hundred twenty-four thousand, five hundred".