2131323000 has 64 divisors (see below), whose sum is σ = 6649737120. Its totient is φ = 568352000.

The previous prime is 2131322957. The next prime is 2131323011. The reversal of 2131323000 is 3231312.

2131323000 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352221 + ... + 358220.

Almost surely, 2^2131323000 is an apocalyptic number.

2131323000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131323000 is an abundant number, since it is smaller than the sum of its proper divisors (4518414120).

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

2131323000 is a wasteful number, since it uses less digits than its factorization.

2131323000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710465 (or 710451 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 2131323000 is about 46166.2539091055. The cubic root of 2131323000 is about 1286.9146866628.

Adding to 2131323000 its reverse (3231312), we get a palindrome (2134554312).

The spelling of 2131323000 in words is "two billion, one hundred thirty-one million, three hundred twenty-three thousand".