320022131000 has 384 divisors, whose sum is σ = 890412868800. Its totient is φ = 106939008000.

The previous prime is 320022130993. The next prime is 320022131027. The reversal of 320022131000 is 131220023.

It is a happy number.

It is a super-2 number, since 2×320022131000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 611896739 + ... + 611897261.

Almost surely, 2^320022131000 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 320022131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (445206434400).

320022131000 is an abundant number, since it is smaller than the sum of its proper divisors (570390737800).

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

320022131000 is a wasteful number, since it uses less digits than its factorization.

320022131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 320022131000 its reverse (131220023), we get a palindrome (320153351023).

The spelling of 320022131000 in words is "three hundred twenty billion, twenty-two million, one hundred thirty-one thousand".