1312123211020 has 12 divisors (see below), whose sum is σ = 2755458743184. Its totient is φ = 524849284400.

The previous prime is 1312123211017. The next prime is 1312123211033. The reversal of 1312123211020 is 201123212131.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32803080256 + ... + 32803080295.

It is an arithmetic number, because the mean of its divisors is an integer number (229621561932).

Almost surely, 2^{1312123211020} is an apocalyptic number.

1312123211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312123211020 is an abundant number, since it is smaller than the sum of its proper divisors (1443335532164).

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

1312123211020 is a wasteful number, since it uses less digits than its factorization.

1312123211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65606160560 (or 65606160558 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1312123211020 its reverse (201123212131), we get a palindrome (1513246423151).

The spelling of 1312123211020 in words is "one trillion, three hundred twelve billion, one hundred twenty-three million, two hundred eleven thousand, twenty".