2157323230 has 16 divisors (see below), whose sum is σ = 3884280480. Its totient is φ = 862685152.

The previous prime is 2157323227. The next prime is 2157323257. The reversal of 2157323230 is 323237512.

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, 9036 + ... + 66304.

It is an arithmetic number, because the mean of its divisors is an integer number (242767530).

Almost surely, 2^2157323230 is an apocalyptic number.

2157323230 is a deficient number, since it is larger than the sum of its proper divisors (1726957250).

2157323230 is a wasteful number, since it uses less digits than its factorization.

2157323230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61043.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 2157323230 is about 46446.9937670890. The cubic root of 2157323230 is about 1292.1266186489.

The spelling of 2157323230 in words is "two billion, one hundred fifty-seven million, three hundred twenty-three thousand, two hundred thirty".