11512512131254 has 4 divisors (see below), whose sum is σ = 17268768196884. Its totient is φ = 5756256065626.

The previous prime is 11512512131249. The next prime is 11512512131273. The reversal of 11512512131254 is 45213121521511.

11512512131254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×11512512131254² (a number of 27 digits) contains 22 as substring.

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, 2878128032812 + ... + 2878128032815.

It is an arithmetic number, because the mean of its divisors is an integer number (4317192049221).

Almost surely, 2^{11512512131254} is an apocalyptic number.

11512512131254 is a deficient number, since it is larger than the sum of its proper divisors (5756256065630).

11512512131254 is an equidigital number, since it uses as much as digits as its factorization.

11512512131254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5756256065629.

The product of its digits is 12000, while the sum is 34.

Adding to 11512512131254 its reverse (45213121521511), we get a palindrome (56725633652765).

The spelling of 11512512131254 in words is "eleven trillion, five hundred twelve billion, five hundred twelve million, one hundred thirty-one thousand, two hundred fifty-four".