131031132330 has 32 divisors (see below), whose sum is σ = 359399677824. Its totient is φ = 29949973056.

The previous prime is 131031132329. The next prime is 131031132341. The reversal of 131031132330 is 33231130131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 131031132297 and 131031132306.

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, 311978677 + ... + 311979096.

It is an arithmetic number, because the mean of its divisors is an integer number (11231239932).

Almost surely, 2^131031132330 is an apocalyptic number.

131031132330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131031132330 is an abundant number, since it is smaller than the sum of its proper divisors (228368545494).

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

131031132330 is a wasteful number, since it uses less digits than its factorization.

131031132330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623957790.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 131031132330 its reverse (33231130131), we get a palindrome (164262262461).

The spelling of 131031132330 in words is "one hundred thirty-one billion, thirty-one million, one hundred thirty-two thousand, three hundred thirty".