16113536231 has 4 divisors (see below), whose sum is σ = 17353039032. Its totient is φ = 14874033432.

The previous prime is 16113536189. The next prime is 16113536233. The reversal of 16113536231 is 13263531161.

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 16113536231 - 2¹⁸ = 16113274087 is a prime.

It is a super-2 number, since 2×16113536231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16113536233) 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, 619751381 + ... + 619751406.

It is an arithmetic number, because the mean of its divisors is an integer number (4338259758).

Almost surely, 2^16113536231 is an apocalyptic number.

16113536231 is a deficient number, since it is larger than the sum of its proper divisors (1239502801).

16113536231 is a wasteful number, since it uses less digits than its factorization.

16113536231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239502800.

The product of its digits is 9720, while the sum is 32.

The spelling of 16113536231 in words is "sixteen billion, one hundred thirteen million, five hundred thirty-six thousand, two hundred thirty-one".