2123240320 has 32 divisors (see below), whose sum is σ = 5075872920. Its totient is φ = 849295872.

The previous prime is 2123240263. The next prime is 2123240351. The reversal of 2123240320 is 230423212.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1658142 + ... + 1659421.

Almost surely, 2^2123240320 is an apocalyptic number.

2123240320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123240320 is an abundant number, since it is smaller than the sum of its proper divisors (2952632600).

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

2123240320 is an equidigital number, since it uses as much as digits as its factorization.

2123240320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3317582 (or 3317570 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2123240320 is about 46078.6319241359. The cubic root of 2123240320 is about 1285.2858241691.

Adding to 2123240320 its reverse (230423212), we get a palindrome (2353663532).

The spelling of 2123240320 in words is "two billion, one hundred twenty-three million, two hundred forty thousand, three hundred twenty".