15131132501020 has 96 divisors (see below), whose sum is σ = 33623638659072. Its totient is φ = 5710401600000.

The previous prime is 15131132500969. The next prime is 15131132501047. The reversal of 15131132501020 is 2010523113151.

It is a congruent number.

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, 36679305 + ... + 37089535.

It is an arithmetic number, because the mean of its divisors is an integer number (350246236032).

Almost surely, 2^{15131132501020} is an apocalyptic number.

15131132501020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15131132501020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16811819329536).

15131132501020 is an abundant number, since it is smaller than the sum of its proper divisors (18492506158052).

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

15131132501020 is a wasteful number, since it uses less digits than its factorization.

15131132501020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411763 (or 411761 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 15131132501020 its reverse (2010523113151), we get a palindrome (17141655614171).

The spelling of 15131132501020 in words is "fifteen trillion, one hundred thirty-one billion, one hundred thirty-two million, five hundred one thousand, twenty".