12135501111 has 8 divisors (see below), whose sum is σ = 16187236864. Its totient is φ = 8087049720.

The previous prime is 12135501089. The next prime is 12135501113. The reversal of 12135501111 is 11110553121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12135501111 - 2⁹ = 12135500599 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 (12135501113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812455 + ... + 827256.

It is an arithmetic number, because the mean of its divisors is an integer number (2023404608).

Almost surely, 2^12135501111 is an apocalyptic number.

12135501111 is a deficient number, since it is larger than the sum of its proper divisors (4051735753).

12135501111 is a wasteful number, since it uses less digits than its factorization.

12135501111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642181.

The product of its (nonzero) digits is 150, while the sum is 21.

The spelling of 12135501111 in words is "twelve billion, one hundred thirty-five million, five hundred one thousand, one hundred eleven".