123142485377 has 2 divisors, whose sum is σ = 123142485378. Its totient is φ = 123142485376.

The previous prime is 123142485289. The next prime is 123142485391. The reversal of 123142485377 is 773584241321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77022345841 + 46120139536 = 277529^2 + 214756^2 .

It is a cyclic number.

It is not a de Polignac number, because 123142485377 - 2⁸ = 123142485121 is a prime.

It is not a weakly prime, because it can be changed into another prime (123142485077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61571242688 + 61571242689.

It is an arithmetic number, because the mean of its divisors is an integer number (61571242689).

Almost surely, 2^123142485377 is an apocalyptic number.

It is an amenable number.

123142485377 is a deficient number, since it is larger than the sum of its proper divisors (1).

123142485377 is an equidigital number, since it uses as much as digits as its factorization.

123142485377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 47.

The spelling of 123142485377 in words is "one hundred twenty-three billion, one hundred forty-two million, four hundred eighty-five thousand, three hundred seventy-seven".