3231203121 has 24 divisors (see below), whose sum is σ = 4695739776. Its totient is φ = 2141049120.

The previous prime is 3231203111. The next prime is 3231203167. The reversal of 3231203121 is 1213021323.

It is not a de Polignac number, because 3231203121 - 2⁶ = 3231203057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3231203094 and 3231203103.

It is not an unprimeable number, because it can be changed into a prime (3231203111) 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, 1135126 + ... + 1137968.

It is an arithmetic number, because the mean of its divisors is an integer number (195655824).

Almost surely, 2^3231203121 is an apocalyptic number.

It is an amenable number.

3231203121 is a deficient number, since it is larger than the sum of its proper divisors (1464536655).

3231203121 is a wasteful number, since it uses less digits than its factorization.

3231203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573 (or 3570 counting only the distinct ones).

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

The square root of 3231203121 is about 56843.6726558022. The cubic root of 3231203121 is about 1478.3868351263.

Adding to 3231203121 its reverse (1213021323), we get a palindrome (4444224444).

The spelling of 3231203121 in words is "three billion, two hundred thirty-one million, two hundred three thousand, one hundred twenty-one".