123642604153 has 2 divisors, whose sum is σ = 123642604154. Its totient is φ = 123642604152.

The previous prime is 123642604109. The next prime is 123642604207. The reversal of 123642604153 is 351406246321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72109972089 + 51532632064 = 268533^2 + 227008^2 .

It is a cyclic number.

It is not a de Polignac number, because 123642604153 - 2¹³ = 123642595961 is a prime.

It is not a weakly prime, because it can be changed into another prime (123642608153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61821302076 + 61821302077.

It is an arithmetic number, because the mean of its divisors is an integer number (61821302077).

Almost surely, 2^123642604153 is an apocalyptic number.

It is an amenable number.

123642604153 is a deficient number, since it is larger than the sum of its proper divisors (1).

123642604153 is an equidigital number, since it uses as much as digits as its factorization.

123642604153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 123642604153 in words is "one hundred twenty-three billion, six hundred forty-two million, six hundred four thousand, one hundred fifty-three".