45021120997 has 2 divisors, whose sum is σ = 45021120998. Its totient is φ = 45021120996.

The previous prime is 45021120929. The next prime is 45021121031. The reversal of 45021120997 is 79902112054.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33706756836 + 11314364161 = 183594^2 + 106369^2 .

It is a cyclic number.

It is not a de Polignac number, because 45021120997 - 2³¹ = 42873637349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45021120097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22510560498 + 22510560499.

It is an arithmetic number, because the mean of its divisors is an integer number (22510560499).

Almost surely, 2^45021120997 is an apocalyptic number.

It is an amenable number.

45021120997 is a deficient number, since it is larger than the sum of its proper divisors (1).

45021120997 is an equidigital number, since it uses as much as digits as its factorization.

45021120997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 45021120997 in words is "forty-five billion, twenty-one million, one hundred twenty thousand, nine hundred ninety-seven".