1312101211020 has 96 divisors (see below), whose sum is σ = 3834552089088. Its totient is φ = 334599293952.

The previous prime is 1312101210991. The next prime is 1312101211039. The reversal of 1312101211020 is 201121012131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5650447 + ... + 5878073.

It is an arithmetic number, because the mean of its divisors is an integer number (39943250928).

Almost surely, 2^{1312101211020} is an apocalyptic number.

1312101211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312101211020 is an abundant number, since it is smaller than the sum of its proper divisors (2522450878068).

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

1312101211020 is a wasteful number, since it uses less digits than its factorization.

1312101211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231839 (or 231837 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1312101211020 its reverse (201121012131), we get a palindrome (1513222223151).

The spelling of 1312101211020 in words is "one trillion, three hundred twelve billion, one hundred one million, two hundred eleven thousand, twenty".