1312122020010 has 32 divisors (see below), whose sum is σ = 3164917449600. Its totient is φ = 348140916288.

The previous prime is 1312122019997. The next prime is 1312122020093. The reversal of 1312122020010 is 100202212131.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109886997 + ... + 109898936.

It is an arithmetic number, because the mean of its divisors is an integer number (98903670300).

Almost surely, 2^{1312122020010} is an apocalyptic number.

1312122020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312122020010 is an abundant number, since it is smaller than the sum of its proper divisors (1852795429590).

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

1312122020010 is a wasteful number, since it uses less digits than its factorization.

1312122020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219786142.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1312122020010 its reverse (100202212131), we get a palindrome (1412324232141).

The spelling of 1312122020010 in words is "one trillion, three hundred twelve billion, one hundred twenty-two million, twenty thousand, ten".