56387000123 has 8 divisors (see below), whose sum is σ = 58900372128. Its totient is φ = 53878775104.

The previous prime is 56387000071. The next prime is 56387000143. The reversal of 56387000123 is 32100078365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56387000123 - 2²⁰ = 56385951547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56387000143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1264340 + ... + 1308177.

It is an arithmetic number, because the mean of its divisors is an integer number (7362546516).

Almost surely, 2^56387000123 is an apocalyptic number.

56387000123 is a deficient number, since it is larger than the sum of its proper divisors (2513372005).

56387000123 is a wasteful number, since it uses less digits than its factorization.

56387000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573493.

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 56387000123 its reverse (32100078365), we get a palindrome (88487078488).

The spelling of 56387000123 in words is "fifty-six billion, three hundred eighty-seven million, one hundred twenty-three", and thus it is an aban number.