1312021113300 has 54 divisors (see below), whose sum is σ = 4112457292398. Its totient is φ = 349872296640.

The previous prime is 1312021113287. The next prime is 1312021113307. The reversal of 1312021113300 is 33111202131.

1312021113300 is a `hidden beast` number, since 1 + 3 + 120 + 211 + 1 + 330 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 301019017104 + 1011002096196 = 548652^2 + 1005486^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312021113307) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 728899719 + ... + 728901518.

Almost surely, 2^{1312021113300} is an apocalyptic number.

1312021113300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312021113300 is an abundant number, since it is smaller than the sum of its proper divisors (2800436179098).

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

1312021113300 is a wasteful number, since it uses less digits than its factorization.

1312021113300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457801257 (or 1457801247 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1312021113300 its reverse (33111202131), we get a palindrome (1345132315431).

The spelling of 1312021113300 in words is "one trillion, three hundred twelve billion, twenty-one million, one hundred thirteen thousand, three hundred".