31203134022000 has 160 divisors (see below), whose sum is σ = 100667882914560. Its totient is φ = 8315130297600.

The previous prime is 31203134021999. The next prime is 31203134022031. The reversal of 31203134022000 is 22043130213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6971779 + ... + 10536221.

It is an arithmetic number, because the mean of its divisors is an integer number (629174268216).

Almost surely, 2^{31203134022000} is an apocalyptic number.

31203134022000 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 31203134022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50333941457280).

31203134022000 is an abundant number, since it is smaller than the sum of its proper divisors (69464748892560).

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

31203134022000 is a wasteful number, since it uses less digits than its factorization.

31203134022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565928 (or 3565912 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31203134022000 its reverse (22043130213), we get a palindrome (31225177152213).

The spelling of 31203134022000 in words is "thirty-one trillion, two hundred three billion, one hundred thirty-four million, twenty-two thousand".