3231212131 has 8 divisors (see below), whose sum is σ = 3712149504. Its totient is φ = 2755108680.

The previous prime is 3231212123. The next prime is 3231212141. The reversal of 3231212131 is 1312121323.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3231212131 - 2³ = 3231212123 is a prime.

It is a super-2 number, since 2×3231212131² = 20881463671043122322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3231212099 and 3231212108.

It is not an unprimeable number, because it can be changed into a prime (3231212111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1207045 + ... + 1209718.

It is an arithmetic number, because the mean of its divisors is an integer number (464018688).

Almost surely, 2^3231212131 is an apocalyptic number.

3231212131 is a deficient number, since it is larger than the sum of its proper divisors (480937373).

3231212131 is a wasteful number, since it uses less digits than its factorization.

3231212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416961.

The product of its digits is 216, while the sum is 19.

The square root of 3231212131 is about 56843.7519081913. The cubic root of 3231212131 is about 1478.3882092536.

Adding to 3231212131 its reverse (1312121323), we get a palindrome (4543333454).

The spelling of 3231212131 in words is "three billion, two hundred thirty-one million, two hundred twelve thousand, one hundred thirty-one".