1213302320100 has 108 divisors (see below), whose sum is σ = 4095569426676. Its totient is φ = 298659029760.

The previous prime is 1213302320099. The next prime is 1213302320123. The reversal of 1213302320100 is 10232033121.

1213302320100 is a `hidden beast` number, since 1 + 2 + 1 + 330 + 2 + 320 + 10 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1458017856 + 1211844302244 = 38184^2 + 1100838^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51838827 + ... + 51862226.

Almost surely, 2^{1213302320100} is an apocalyptic number.

1213302320100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213302320100 is an abundant number, since it is smaller than the sum of its proper divisors (2882267106576).

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

1213302320100 is a wasteful number, since it uses less digits than its factorization.

1213302320100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103701086 (or 103701076 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1213302320100 its reverse (10232033121), we get a palindrome (1223534353221).

The spelling of 1213302320100 in words is "one trillion, two hundred thirteen billion, three hundred two million, three hundred twenty thousand, one hundred".