11523040134 has 16 divisors (see below), whose sum is σ = 23214301488. Its totient is φ = 3812976512.

The previous prime is 11523040099. The next prime is 11523040157. The reversal of 11523040134 is 43104032511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7008327 + ... + 7009970.

It is an arithmetic number, because the mean of its divisors is an integer number (1450893843).

Almost surely, 2^11523040134 is an apocalyptic number.

11523040134 is an abundant number, since it is smaller than the sum of its proper divisors (11691261354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11523040134 is a wasteful number, since it uses less digits than its factorization.

11523040134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14018439.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 11523040134 its reverse (43104032511), we get a palindrome (54627072645).

The spelling of 11523040134 in words is "eleven billion, five hundred twenty-three million, forty thousand, one hundred thirty-four".