3231122331 has 4 divisors (see below), whose sum is σ = 4308163112. Its totient is φ = 2154081552.

The previous prime is 3231122299. The next prime is 3231122333. The reversal of 3231122331 is 1332211323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1332211323 = 3 ⋅444070441.

It is not a de Polignac number, because 3231122331 - 2⁵ = 3231122299 is a prime.

It is a super-2 number, since 2×3231122331² = 20880303035773747122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3231122298 and 3231122307.

It is not an unprimeable number, because it can be changed into a prime (3231122333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538520386 + ... + 538520391.

It is an arithmetic number, because the mean of its divisors is an integer number (1077040778).

Almost surely, 2^3231122331 is an apocalyptic number.

3231122331 is a deficient number, since it is larger than the sum of its proper divisors (1077040781).

3231122331 is a wasteful number, since it uses less digits than its factorization.

3231122331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077040780.

The product of its digits is 648, while the sum is 21.

The square root of 3231122331 is about 56842.9620181778. The cubic root of 3231122331 is about 1478.3745136201.

Adding to 3231122331 its reverse (1332211323), we get a palindrome (4563333654).

The spelling of 3231122331 in words is "three billion, two hundred thirty-one million, one hundred twenty-two thousand, three hundred thirty-one".