124602347921 has 4 divisors (see below), whose sum is σ = 124604687844. Its totient is φ = 124600008000.

The previous prime is 124602347897. The next prime is 124602347951. The reversal of 124602347921 is 129743206421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89228261521 + 35374086400 = 298711^2 + 188080^2 .

It is a cyclic number.

It is not a de Polignac number, because 124602347921 - 2²⁶ = 124535239057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124602347951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1088180 + ... + 1197221.

It is an arithmetic number, because the mean of its divisors is an integer number (31151171961).

Almost surely, 2^124602347921 is an apocalyptic number.

It is an amenable number.

124602347921 is a deficient number, since it is larger than the sum of its proper divisors (2339923).

124602347921 is an equidigital number, since it uses as much as digits as its factorization.

124602347921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339922.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 124602347921 in words is "one hundred twenty-four billion, six hundred two million, three hundred forty-seven thousand, nine hundred twenty-one".