311132125222452 has 384 divisors, whose sum is σ = 932097922560000. Its totient is φ = 89201724885504.

The previous prime is 311132125222447. The next prime is 311132125222487. The reversal of 311132125222452 is 254222521231113.

311132125222452 is a `hidden beast` number, since 3 + 1 + 1 + 132 + 1 + 2 + 52 + 22 + 452 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 78825898 + ... + 82678814.

It is an arithmetic number, because the mean of its divisors is an integer number (2427338340000).

Almost surely, 2^{311132125222452} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311132125222452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466048961280000).

311132125222452 is an abundant number, since it is smaller than the sum of its proper divisors (620965797337548).

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

311132125222452 is a wasteful number, since it uses less digits than its factorization.

311132125222452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3853060 (or 3853052 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 311132125222452 its reverse (254222521231113), we get a palindrome (565354646453565).

The spelling of 311132125222452 in words is "three hundred eleven trillion, one hundred thirty-two billion, one hundred twenty-five million, two hundred twenty-two thousand, four hundred fifty-two".