5123133456 has 60 divisors (see below), whose sum is σ = 15395545872. Its totient is φ = 1463751744.

The previous prime is 5123133443. The next prime is 5123133467. The reversal of 5123133456 is 6543313215.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1086750 + ... + 1091453.

Almost surely, 2^5123133456 is an apocalyptic number.

5123133456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

5123133456 is an abundant number, since it is smaller than the sum of its proper divisors (10272412416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5123133456 is a wasteful number, since it uses less digits than its factorization.

5123133456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178228 (or 2178215 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The square root of 5123133456 is about 71576.0676203995. The cubic root of 5123133456 is about 1723.8992858588.

The spelling of 5123133456 in words is "five billion, one hundred twenty-three million, one hundred thirty-three thousand, four hundred fifty-six".