11512112534 has 8 divisors (see below), whose sum is σ = 18596489520. Its totient is φ = 5313282696.

The previous prime is 11512112527. The next prime is 11512112537. The reversal of 11512112534 is 43521121511.

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 442773559 = 11512112534 / (1 + 1 + 5 + 1 + 2 + 1 + 1 + 2 + 5 + 3 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512112537) 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, 221386754 + ... + 221386805.

It is an arithmetic number, because the mean of its divisors is an integer number (2324561190).

Almost surely, 2^11512112534 is an apocalyptic number.

11512112534 is a deficient number, since it is larger than the sum of its proper divisors (7084376986).

11512112534 is a wasteful number, since it uses less digits than its factorization.

11512112534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442773574.

The product of its digits is 1200, while the sum is 26.

The spelling of 11512112534 in words is "eleven billion, five hundred twelve million, one hundred twelve thousand, five hundred thirty-four".