131030131020 has 96 divisors (see below), whose sum is σ = 391778795520. Its totient is φ = 32648206080.

The previous prime is 131030130997. The next prime is 131030131103. The reversal of 131030131020 is 20131030131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1160652 + ... + 1268531.

It is an arithmetic number, because the mean of its divisors is an integer number (4081029120).

Almost surely, 2^131030131020 is an apocalyptic number.

131030131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131030131020 is an abundant number, since it is smaller than the sum of its proper divisors (260748664500).

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

131030131020 is a wasteful number, since it uses less digits than its factorization.

131030131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429255 (or 2429253 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 131030131020 its reverse (20131030131), we get a palindrome (151161161151).

The spelling of 131030131020 in words is "one hundred thirty-one billion, thirty million, one hundred thirty-one thousand, twenty".