1012996331520 has 384 divisors, whose sum is σ = 3284659123200. Its totient is φ = 266497818624.

The previous prime is 1012996331497. The next prime is 1012996331531. The reversal of 1012996331520 is 251336992101.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1230857829 + ... + 1230858651.

It is an arithmetic number, because the mean of its divisors is an integer number (8553799800).

Almost surely, 2^{1012996331520} is an apocalyptic number.

1012996331520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012996331520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1642329561600).

1012996331520 is an abundant number, since it is smaller than the sum of its proper divisors (2271662791680).

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

1012996331520 is a wasteful number, since it uses less digits than its factorization.

1012996331520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 42.

The spelling of 1012996331520 in words is "one trillion, twelve billion, nine hundred ninety-six million, three hundred thirty-one thousand, five hundred twenty".