123913863 has 12 divisors (see below), whose sum is σ = 179103808. Its totient is φ = 82555200.

The previous prime is 123913861. The next prime is 123913871. The reversal of 123913863 is 368319321.

It is not a de Polignac number, because 123913863 - 2¹ = 123913861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123913861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14031 + ... + 21087.

Almost surely, 2^123913863 is an apocalyptic number.

123913863 is a deficient number, since it is larger than the sum of its proper divisors (55189945).

123913863 is a wasteful number, since it uses less digits than its factorization.

123913863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9014 (or 9011 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 123913863 is about 11131.6603882799. The cubic root of 123913863 is about 498.5476025014.

The spelling of 123913863 in words is "one hundred twenty-three million, nine hundred thirteen thousand, eight hundred sixty-three".