124403313 has 16 divisors (see below), whose sum is σ = 170551296. Its totient is φ = 80619600.

The previous prime is 124403309. The next prime is 124403347. The reversal of 124403313 is 313304421.

It is not a de Polignac number, because 124403313 - 2² = 124403309 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 124403313.

It is not an unprimeable number, because it can be changed into a prime (124403353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18370 + ... + 24212.

It is an arithmetic number, because the mean of its divisors is an integer number (10659456).

Almost surely, 2^124403313 is an apocalyptic number.

It is an amenable number.

124403313 is a deficient number, since it is larger than the sum of its proper divisors (46147983).

124403313 is a wasteful number, since it uses less digits than its factorization.

124403313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6044.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 124403313 is about 11153.6233126281. The cubic root of 124403313 is about 499.2031480620.

Adding to 124403313 its reverse (313304421), we get a palindrome (437707734).

It can be divided in two parts, 12440 and 3313, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 124403313 in words is "one hundred twenty-four million, four hundred three thousand, three hundred thirteen".