12042115151 has 4 divisors (see below), whose sum is σ = 13136852904. Its totient is φ = 10947377400.

The previous prime is 12042115109. The next prime is 12042115153. The reversal of 12042115151 is 15151124021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12042115151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042115153) 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, 547368860 + ... + 547368881.

It is an arithmetic number, because the mean of its divisors is an integer number (3284213226).

Almost surely, 2^12042115151 is an apocalyptic number.

12042115151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12042115151 is a deficient number, since it is larger than the sum of its proper divisors (1094737753).

12042115151 is a wasteful number, since it uses less digits than its factorization.

12042115151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094737752.

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 12042115151 its reverse (15151124021), we get a palindrome (27193239172).

The spelling of 12042115151 in words is "twelve billion, forty-two million, one hundred fifteen thousand, one hundred fifty-one".