1010256131020 has 24 divisors (see below), whose sum is σ = 2143409403744. Its totient is φ = 399936446976.

The previous prime is 1010256131011. The next prime is 1010256131041. The reversal of 1010256131020 is 201316520101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1010256130982 and 1010256131000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260373352 + ... + 260377231.

It is an arithmetic number, because the mean of its divisors is an integer number (89308725156).

Almost surely, 2^{1010256131020} is an apocalyptic number.

1010256131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010256131020 is an abundant number, since it is smaller than the sum of its proper divisors (1133153272724).

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

1010256131020 is a wasteful number, since it uses less digits than its factorization.

1010256131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520750689 (or 520750687 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The spelling of 1010256131020 in words is "one trillion, ten billion, two hundred fifty-six million, one hundred thirty-one thousand, twenty".