12042335156 has 6 divisors (see below), whose sum is σ = 21074086530. Its totient is φ = 6021167576.

The previous prime is 12042335119. The next prime is 12042335177. The reversal of 12042335156 is 65153324021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11993754256 + 48580900 = 109516^2 + 6970^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1505291891 + ... + 1505291898.

It is an arithmetic number, because the mean of its divisors is an integer number (3512347755).

Almost surely, 2^12042335156 is an apocalyptic number.

It is an amenable number.

12042335156 is a deficient number, since it is larger than the sum of its proper divisors (9031751374).

12042335156 is a wasteful number, since it uses less digits than its factorization.

12042335156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3010583793 (or 3010583791 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 12042335156 its reverse (65153324021), we get a palindrome (77195659177).

The spelling of 12042335156 in words is "twelve billion, forty-two million, three hundred thirty-five thousand, one hundred fifty-six".