123102240404057 has 2 divisors, whose sum is σ = 123102240404058. Its totient is φ = 123102240404056.

The previous prime is 123102240403973. The next prime is 123102240404063. The reversal of 123102240404057 is 750404042201321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99899705160256 + 23202535243801 = 9994984^2 + 4816901^2 .

It is a cyclic number.

It is not a de Polignac number, because 123102240404057 - 2²² = 123102236209753 is a prime.

It is not a weakly prime, because it can be changed into another prime (123102240404557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61551120202028 + 61551120202029.

It is an arithmetic number, because the mean of its divisors is an integer number (61551120202029).

Almost surely, 2^{123102240404057} is an apocalyptic number.

It is an amenable number.

123102240404057 is a deficient number, since it is larger than the sum of its proper divisors (1).

123102240404057 is an equidigital number, since it uses as much as digits as its factorization.

123102240404057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 35.

Adding to 123102240404057 its reverse (750404042201321), we get a palindrome (873506282605378).

The spelling of 123102240404057 in words is "one hundred twenty-three trillion, one hundred two billion, two hundred forty million, four hundred four thousand, fifty-seven".