131021230100000 has 72 divisors (see below), whose sum is σ = 322414422851556. Its totient is φ = 52408492000000.

The previous prime is 131021230099961. The next prime is 131021230100021. The reversal of 131021230100000 is 1032120131.

It can be written as a sum of positive squares in 6 ways, for example, as 18462455865616 + 112558774234384 = 4296796^2 + 10609372^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 655006151 + ... + 655206150.

Almost surely, 2^{131021230100000} is an apocalyptic number.

131021230100000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131021230100000 is an abundant number, since it is smaller than the sum of its proper divisors (191393192751556).

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

131021230100000 is an frugal number, since it uses more digits than its factorization.

131021230100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310212336 (or 1310212308 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 131021230100000 its reverse (1032120131), we get a palindrome (131022262220131).

The spelling of 131021230100000 in words is "one hundred thirty-one trillion, twenty-one billion, two hundred thirty million, one hundred thousand".