11534413031 has 4 divisors (see below), whose sum is σ = 11535456552. Its totient is φ = 11533369512.

The previous prime is 11534413019. The next prime is 11534413069. The reversal of 11534413031 is 13031443511.

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

It is a cyclic number.

It is not a de Polignac number, because 11534413031 - 2¹⁰ = 11534412007 is a prime.

It is a super-2 number, since 2×11534413031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11534413531) 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, 505001 + ... + 527346.

It is an arithmetic number, because the mean of its divisors is an integer number (2883864138).

Almost surely, 2^11534413031 is an apocalyptic number.

11534413031 is a deficient number, since it is larger than the sum of its proper divisors (1043521).

11534413031 is a wasteful number, since it uses less digits than its factorization.

11534413031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043520.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 11534413031 its reverse (13031443511), we get a palindrome (24565856542).

The spelling of 11534413031 in words is "eleven billion, five hundred thirty-four million, four hundred thirteen thousand, thirty-one".