20232131000 has 128 divisors (see below), whose sum is σ = 50094720000. Its totient is φ = 7626960000.

The previous prime is 20232130979. The next prime is 20232131009. The reversal of 20232131000 is 13123202.

It is a happy number.

It is a super-2 number, since 2×20232131000² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232131009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3778325 + ... + 3783675.

It is an arithmetic number, because the mean of its divisors is an integer number (391365000).

Almost surely, 2^20232131000 is an apocalyptic number.

20232131000 is a gapful number since it is divisible by the number (20) 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 20232131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25047360000).

20232131000 is an abundant number, since it is smaller than the sum of its proper divisors (29862589000).

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

20232131000 is a wasteful number, since it uses less digits than its factorization.

20232131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590 (or 5576 counting only the distinct ones).

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

Adding to 20232131000 its reverse (13123202), we get a palindrome (20245254202).

The spelling of 20232131000 in words is "twenty billion, two hundred thirty-two million, one hundred thirty-one thousand".