31203253980420 has 768 divisors, whose sum is σ = 103166368284672. Its totient is φ = 6998301573120.

The previous prime is 31203253980407. The next prime is 31203253980461. The reversal of 31203253980420 is 2408935230213.

It is a happy number.

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 255 ways as a sum of consecutive naturals, for example, 2162230605 + ... + 2162245035.

It is an arithmetic number, because the mean of its divisors is an integer number (134331208704).

Almost surely, 2^{31203253980420} is an apocalyptic number.

31203253980420 is a gapful number since it is divisible by the number (30) 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 31203253980420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51583184142336).

31203253980420 is an abundant number, since it is smaller than the sum of its proper divisors (71963114304252).

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

31203253980420 is a wasteful number, since it uses less digits than its factorization.

31203253980420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14620 (or 14618 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 31203253980420 in words is "thirty-one trillion, two hundred three billion, two hundred fifty-three million, nine hundred eighty thousand, four hundred twenty".