124220745387 has 6 divisors (see below), whose sum is σ = 179429965572. Its totient is φ = 82813830252.

The previous prime is 124220745371. The next prime is 124220745403. The reversal of 124220745387 is 783547022421.

124220745387 is a `hidden beast` number, since 1 + 2 + 4 + 220 + 7 + 45 + 387 = 666.

It is an interprime number because it is at equal distance from previous prime (124220745371) and next prime (124220745403).

It is not a de Polignac number, because 124220745387 - 2⁴ = 124220745371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124220745347) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6901152513 + ... + 6901152530.

It is an arithmetic number, because the mean of its divisors is an integer number (29904994262).

Almost surely, 2^124220745387 is an apocalyptic number.

124220745387 is a deficient number, since it is larger than the sum of its proper divisors (55209220185).

124220745387 is a wasteful number, since it uses less digits than its factorization.

124220745387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13802305049 (or 13802305046 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 124220745387 in words is "one hundred twenty-four billion, two hundred twenty million, seven hundred forty-five thousand, three hundred eighty-seven".