131015821210 has 64 divisors (see below), whose sum is σ = 240997680000. Its totient is φ = 51272508672.

The previous prime is 131015821177. The next prime is 131015821213. The reversal of 131015821210 is 12128510131.

It is not an unprimeable number, because it can be changed into a prime (131015821213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37442041 + ... + 37445539.

It is an arithmetic number, because the mean of its divisors is an integer number (3765588750).

Almost surely, 2^131015821210 is an apocalyptic number.

131015821210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131015821210 is a deficient number, since it is larger than the sum of its proper divisors (109981858790).

131015821210 is a wasteful number, since it uses less digits than its factorization.

131015821210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015.

The product of its (nonzero) digits is 480, while the sum is 25.

The spelling of 131015821210 in words is "one hundred thirty-one billion, fifteen million, eight hundred twenty-one thousand, two hundred ten".