2123031000 has 64 divisors (see below), whose sum is σ = 6623866080. Its totient is φ = 566140800.

The previous prime is 2123030999. The next prime is 2123031011. The reversal of 2123031000 is 1303212.

It is a happy number.

It is a super-2 number, since 2×2123031000² = 9014521253922000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350839 + ... + 356838.

Almost surely, 2^2123031000 is an apocalyptic number.

2123031000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123031000 is an abundant number, since it is smaller than the sum of its proper divisors (4500835080).

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

2123031000 is a wasteful number, since it uses less digits than its factorization.

2123031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707701 (or 707687 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2123031000 is about 46076.3605333581. The cubic root of 2123031000 is about 1285.2435860754.

Adding to 2123031000 its reverse (1303212), we get a palindrome (2124334212).

The spelling of 2123031000 in words is "two billion, one hundred twenty-three million, thirty-one thousand".