2331421200 has 90 divisors (see below), whose sum is σ = 8090691674. Its totient is φ = 621711360.

The previous prime is 2331421189. The next prime is 2331421283. The reversal of 2331421200 is 21241332.

It can be written as a sum of positive squares in 3 ways, for example, as 583512336 + 1747908864 = 24156^2 + 41808^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a super-3 number, since 3×2331421200³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 320209 + ... + 327408.

Almost surely, 2^2331421200 is an apocalyptic number.

2331421200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2331421200 is an abundant number, since it is smaller than the sum of its proper divisors (5759270474).

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

2331421200 is a wasteful number, since it uses less digits than its factorization.

2331421200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647641 (or 647627 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2331421200 is about 48284.7926370198. The cubic root of 2331421200 is about 1325.9899946694.

Adding to 2331421200 its reverse (21241332), we get a palindrome (2352662532).

The spelling of 2331421200 in words is "two billion, three hundred thirty-one million, four hundred twenty-one thousand, two hundred".