56131138103 has 4 divisors (see below), whose sum is σ = 56138737968. Its totient is φ = 56123538240.

The previous prime is 56131138097. The next prime is 56131138117. The reversal of 56131138103 is 30183113165.

56131138103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56131138103 - 2¹⁶ = 56131072567 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56131138103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56131138153) 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, 3788843 + ... + 3803628.

It is an arithmetic number, because the mean of its divisors is an integer number (14034684492).

Almost surely, 2^56131138103 is an apocalyptic number.

56131138103 is a deficient number, since it is larger than the sum of its proper divisors (7599865).

56131138103 is an equidigital number, since it uses as much as digits as its factorization.

56131138103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7599864.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 56131138103 in words is "fifty-six billion, one hundred thirty-one million, one hundred thirty-eight thousand, one hundred three".