3201123231 has 24 divisors (see below), whose sum is σ = 4665146304. Its totient is φ = 2115072000.

The previous prime is 3201123223. The next prime is 3201123281. The reversal of 3201123231 is 1323211023.

3201123231 is a `hidden beast` number, since 320 + 112 + 3 + 231 = 666.

It is not a de Polignac number, because 3201123231 - 2³ = 3201123223 is a prime.

It is a super-2 number, since 2×3201123231² = 20494379880095758722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201123281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 924255 + ... + 927711.

It is an arithmetic number, because the mean of its divisors is an integer number (194381096).

Almost surely, 2^3201123231 is an apocalyptic number.

3201123231 is a deficient number, since it is larger than the sum of its proper divisors (1464023073).

3201123231 is a wasteful number, since it uses less digits than its factorization.

3201123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351 (or 4348 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3201123231 is about 56578.4696770777. The cubic root of 3201123231 is about 1473.7849967194.

Adding to 3201123231 its reverse (1323211023), we get a palindrome (4524334254).

The spelling of 3201123231 in words is "three billion, two hundred one million, one hundred twenty-three thousand, two hundred thirty-one".