31023321002020 has 96 divisors (see below), whose sum is σ = 66580223592960. Its totient is φ = 12139119682560.

The previous prime is 31023321001969. The next prime is 31023321002057. The reversal of 31023321002020 is 2020012332013.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 167544009 + ... + 167729071.

It is an arithmetic number, because the mean of its divisors is an integer number (693543995760).

Almost surely, 2^{31023321002020} is an apocalyptic number.

It is an amenable number.

31023321002020 is an abundant number, since it is smaller than the sum of its proper divisors (35556902590940).

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

31023321002020 is a wasteful number, since it uses less digits than its factorization.

31023321002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185885 (or 185883 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31023321002020 its reverse (2020012332013), we get a palindrome (33043333334033).

The spelling of 31023321002020 in words is "thirty-one trillion, twenty-three billion, three hundred twenty-one million, two thousand, twenty".