1012020020331 has 16 divisors (see below), whose sum is σ = 1351128979200. Its totient is φ = 673795711008.

The previous prime is 1012020020321. The next prime is 1012020020339. The reversal of 1012020020331 is 1330200202101.

It is not a de Polignac number, because 1012020020331 - 2⁷ = 1012020020203 is a prime.

It is a super-2 number, since 2×1012020020331² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1012020020331.

It is not an unprimeable number, because it can be changed into a prime (1012020020339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36094740 + ... + 36122766.

It is an arithmetic number, because the mean of its divisors is an integer number (84445561200).

Almost surely, 2^{1012020020331} is an apocalyptic number.

1012020020331 is a deficient number, since it is larger than the sum of its proper divisors (339108958869).

1012020020331 is a wasteful number, since it uses less digits than its factorization.

1012020020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43378.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1012020020331 its reverse (1330200202101), we get a palindrome (2342220222432).

The spelling of 1012020020331 in words is "one trillion, twelve billion, twenty million, twenty thousand, three hundred thirty-one".