12111530733 has 12 divisors (see below), whose sum is σ = 17496409788. Its totient is φ = 8073441600.

The previous prime is 12111530713. The next prime is 12111530737. The reversal of 12111530733 is 33703511121.

It is a happy number.

12111530733 is a `hidden beast` number, since 12 + 111 + 530 + 7 + 3 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9816450084 + 2295080649 = 99078^2 + 47907^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12111530733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12111530697 and 12111530706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111530737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13633 + ... + 156233.

It is an arithmetic number, because the mean of its divisors is an integer number (1458034149).

Almost surely, 2^12111530733 is an apocalyptic number.

It is an amenable number.

12111530733 is a deficient number, since it is larger than the sum of its proper divisors (5384879055).

12111530733 is a wasteful number, since it uses less digits than its factorization.

12111530733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152044 (or 152041 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The spelling of 12111530733 in words is "twelve billion, one hundred eleven million, five hundred thirty thousand, seven hundred thirty-three".