2220431031 has 36 divisors (see below), whose sum is σ = 4017933192. Its totient is φ = 1171213344.

The previous prime is 2220431021. The next prime is 2220431039. The reversal of 2220431031 is 1301340222.

It is not a de Polignac number, because 2220431031 - 2⁶ = 2220430967 is a prime.

It is a super-2 number, since 2×2220431031² = 9860627926855445922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2220430995 and 2220431013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220431039) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 187921 + ... + 199386.

Almost surely, 2^2220431031 is an apocalyptic number.

2220431031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2220431031 is a deficient number, since it is larger than the sum of its proper divisors (1797502161).

2220431031 is a wasteful number, since it uses less digits than its factorization.

2220431031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387340 (or 387330 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2220431031 is about 47121.4497973057. The cubic root of 2220431031 is about 1304.6051723172.

Adding to 2220431031 its reverse (1301340222), we get a palindrome (3521771253).

It can be divided in two parts, 22204 and 31031, that added together give a palindrome (53235).

The spelling of 2220431031 in words is "two billion, two hundred twenty million, four hundred thirty-one thousand, thirty-one".