124111993 has 4 divisors (see below), whose sum is σ = 124145488. Its totient is φ = 124078500.

The previous prime is 124111963. The next prime is 124111997. The reversal of 124111993 is 399111421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124111993 - 2¹⁷ = 123980921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124111997) 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, 10383 + ... + 18868.

It is an arithmetic number, because the mean of its divisors is an integer number (31036372).

Almost surely, 2^124111993 is an apocalyptic number.

It is an amenable number.

124111993 is a deficient number, since it is larger than the sum of its proper divisors (33495).

124111993 is an equidigital number, since it uses as much as digits as its factorization.

124111993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33494.

The product of its digits is 1944, while the sum is 31.

The square root of 124111993 is about 11140.5562248929. The cubic root of 124111993 is about 498.8131757922.

The spelling of 124111993 in words is "one hundred twenty-four million, one hundred eleven thousand, nine hundred ninety-three".