3031223121 has 32 divisors (see below), whose sum is σ = 4879564800. Its totient is φ = 1852690320.

The previous prime is 3031223101. The next prime is 3031223141. The reversal of 3031223121 is 1213221303.

3031223121 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3031223101) and next prime (3031223141).

It is not a de Polignac number, because 3031223121 - 2¹⁵ = 3031190353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3031223094 and 3031223103.

It is not an unprimeable number, because it can be changed into a prime (3031223101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79401 + ... + 111206.

It is an arithmetic number, because the mean of its divisors is an integer number (152486400).

Almost surely, 2^3031223121 is an apocalyptic number.

3031223121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3031223121 is a deficient number, since it is larger than the sum of its proper divisors (1848341679).

3031223121 is a wasteful number, since it uses less digits than its factorization.

3031223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190666 (or 190660 counting only the distinct ones).

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

The square root of 3031223121 is about 55056.5447608184. The cubic root of 3031223121 is about 1447.2358152994.

Adding to 3031223121 its reverse (1213221303), we get a palindrome (4244444424).

The spelling of 3031223121 in words is "three billion, thirty-one million, two hundred twenty-three thousand, one hundred twenty-one".