31201022203134 has 48 divisors (see below), whose sum is σ = 72757778235408. Its totient is φ = 8893989796608.

The previous prime is 31201022203111. The next prime is 31201022203207. The reversal of 31201022203134 is 43130222010213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122419957 + ... + 122674560.

It is an arithmetic number, because the mean of its divisors is an integer number (1515787046571).

Almost surely, 2^{31201022203134} is an apocalyptic number.

31201022203134 is an abundant number, since it is smaller than the sum of its proper divisors (41556756032274).

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

31201022203134 is a wasteful number, since it uses less digits than its factorization.

31201022203134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245094969 (or 245094962 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31201022203134 its reverse (43130222010213), we get a palindrome (74331244213347).

The spelling of 31201022203134 in words is "thirty-one trillion, two hundred one billion, twenty-two million, two hundred three thousand, one hundred thirty-four".