2121323000 has 32 divisors (see below), whose sum is σ = 4963898160. Its totient is φ = 848528800.

The previous prime is 2121322997. The next prime is 2121323033. The reversal of 2121323000 is 3231212.

It is a happy number.

It is a super-2 number, since 2×2121323000² = 9000022540658000000, which 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 7 ways as a sum of consecutive naturals, for example, 1059662 + ... + 1061661.

Almost surely, 2^2121323000 is an apocalyptic number.

2121323000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121323000 is an abundant number, since it is smaller than the sum of its proper divisors (2842575160).

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

2121323000 is a wasteful number, since it uses less digits than its factorization.

2121323000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121344 (or 2121330 counting only the distinct ones).

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

The square root of 2121323000 is about 46057.8223540801. The cubic root of 2121323000 is about 1284.8988297665.

Adding to 2121323000 its reverse (3231212), we get a palindrome (2124554212).

The spelling of 2121323000 in words is "two billion, one hundred twenty-one million, three hundred twenty-three thousand".