2223031997 has 2 divisors, whose sum is σ = 2223031998. Its totient is φ = 2223031996.

The previous prime is 2223031957. The next prime is 2223032027. The reversal of 2223031997 is 7991303222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1135285636 + 1087746361 = 33694^2 + 32981^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223031997 - 2²² = 2218837693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2223031997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2223031907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111515998 + 1111515999.

It is an arithmetic number, because the mean of its divisors is an integer number (1111515999).

Almost surely, 2^2223031997 is an apocalyptic number.

It is an amenable number.

2223031997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223031997 is an equidigital number, since it uses as much as digits as its factorization.

2223031997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 2223031997 is about 47149.0402553435. The cubic root of 2223031997 is about 1305.1143691939.

The spelling of 2223031997 in words is "two billion, two hundred twenty-three million, thirty-one thousand, nine hundred ninety-seven".