1312130220100 has 72 divisors (see below), whose sum is σ = 3333450895488. Its totient is φ = 438900691200.

The previous prime is 1312130220091. The next prime is 1312130220103. The reversal of 1312130220100 is 10220312131.

It is not an unprimeable number, because it can be changed into a prime (1312130220103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22830712 + ... + 22888111.

It is an arithmetic number, because the mean of its divisors is an integer number (46297929104).

Almost surely, 2^{1312130220100} is an apocalyptic number.

1312130220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312130220100 is an abundant number, since it is smaller than the sum of its proper divisors (2021320675388).

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

1312130220100 is a wasteful number, since it uses less digits than its factorization.

1312130220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45718885 (or 45718878 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1312130220100 its reverse (10220312131), we get a palindrome (1322350532231).

The spelling of 1312130220100 in words is "one trillion, three hundred twelve billion, one hundred thirty million, two hundred twenty thousand, one hundred".