31030203232020 has 48 divisors (see below), whose sum is σ = 86902965898560. Its totient is φ = 8272968781056.

The previous prime is 31030203231917. The next prime is 31030203232099. The reversal of 31030203232020 is 2023230203013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54466785 + ... + 55033544.

It is an arithmetic number, because the mean of its divisors is an integer number (1810478456220).

Almost surely, 2^{31030203232020} is an apocalyptic number.

31030203232020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31030203232020 is an abundant number, since it is smaller than the sum of its proper divisors (55872762666540).

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

31030203232020 is a wasteful number, since it uses less digits than its factorization.

31030203232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109505064 (or 109505062 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 31030203232020 its reverse (2023230203013), we get a palindrome (33053433435033).

The spelling of 31030203232020 in words is "thirty-one trillion, thirty billion, two hundred three million, two hundred thirty-two thousand, twenty".