11534112345 has 32 divisors (see below), whose sum is σ = 21095313408. Its totient is φ = 5271645888.

The previous prime is 11534112341. The next prime is 11534112361. The reversal of 11534112345 is 54321143511.

It is not a de Polignac number, because 11534112345 - 2² = 11534112341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11534112341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 723652 + ... + 739418.

It is an arithmetic number, because the mean of its divisors is an integer number (659228544).

Almost surely, 2^11534112345 is an apocalyptic number.

11534112345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11534112345 is a deficient number, since it is larger than the sum of its proper divisors (9561201063).

11534112345 is a wasteful number, since it uses less digits than its factorization.

11534112345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22749.

The product of its digits is 7200, while the sum is 30.

Adding to 11534112345 its reverse (54321143511), we get a palindrome (65855255856).

The spelling of 11534112345 in words is "eleven billion, five hundred thirty-four million, one hundred twelve thousand, three hundred forty-five".