12111330402 has 12 divisors (see below), whose sum is σ = 26241215910. Its totient is φ = 4037110128.

The previous prime is 12111330391. The next prime is 12111330467. The reversal of 12111330402 is 20403311121.

12111330402 is a `hidden beast` number, since 121 + 113 + 30 + 402 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12080427921 + 30902481 = 109911^2 + 5559^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 672851689 = 12111330402 / (1 + 2 + 1 + 1 + 1 + 3 + 3 + 0 + 4 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 336425827 + ... + 336425862.

Almost surely, 2^12111330402 is an apocalyptic number.

12111330402 is an abundant number, since it is smaller than the sum of its proper divisors (14129885508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111330402 is a wasteful number, since it uses less digits than its factorization.

12111330402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672851697 (or 672851694 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12111330402 its reverse (20403311121), we get a palindrome (32514641523).

The spelling of 12111330402 in words is "twelve billion, one hundred eleven million, three hundred thirty thousand, four hundred two".