1020031013136 has 40 divisors (see below), whose sum is σ = 2635163017344. Its totient is φ = 339999640960.

The previous prime is 1020031013087. The next prime is 1020031013137. The reversal of 1020031013136 is 6313101300201.

It is not an unprimeable number, because it can be changed into a prime (1020031013137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1288585 + ... + 1923671.

Almost surely, 2^{1020031013136} is an apocalyptic number.

1020031013136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1020031013136 is an abundant number, since it is smaller than the sum of its proper divisors (1615132004208).

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

1020031013136 is a wasteful number, since it uses less digits than its factorization.

1020031013136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668559 (or 668553 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1020031013136 its reverse (6313101300201), we get a palindrome (7333132313337).

The spelling of 1020031013136 in words is "one trillion, twenty billion, thirty-one million, thirteen thousand, one hundred thirty-six".