11531612103 has 32 divisors (see below), whose sum is σ = 17306956800. Its totient is φ = 6769551360.

The previous prime is 11531612089. The next prime is 11531612119. The reversal of 11531612103 is 30121613511.

It is not a de Polignac number, because 11531612103 - 2⁶ = 11531612039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11531612003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112123 + ... + 188771.

It is an arithmetic number, because the mean of its divisors is an integer number (540842400).

Almost surely, 2^11531612103 is an apocalyptic number.

11531612103 is a deficient number, since it is larger than the sum of its proper divisors (5775344697).

11531612103 is a wasteful number, since it uses less digits than its factorization.

11531612103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76807.

The product of its (nonzero) digits is 540, while the sum is 24.

The spelling of 11531612103 in words is "eleven billion, five hundred thirty-one million, six hundred twelve thousand, one hundred three".