2193320431 has 6 divisors (see below), whose sum is σ = 2271561032. Its totient is φ = 2117687880.

The previous prime is 2193320429. The next prime is 2193320443. The reversal of 2193320431 is 1340233912.

It is not a de Polignac number, because 2193320431 - 2¹ = 2193320429 is a prime.

It is a super-2 number, since 2×2193320431² = 9621309026084051522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2193320431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2193320531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1303155 + ... + 1304836.

Almost surely, 2^2193320431 is an apocalyptic number.

2193320431 is a deficient number, since it is larger than the sum of its proper divisors (78240601).

2193320431 is an equidigital number, since it uses as much as digits as its factorization.

2193320431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608049 (or 2608020 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 2193320431 is about 46832.8990240835. The cubic root of 2193320431 is about 1299.2738412006.

It can be divided in two parts, 2193 and 320431, that added together give a square (322624 = 568²).

The spelling of 2193320431 in words is "two billion, one hundred ninety-three million, three hundred twenty thousand, four hundred thirty-one".