11405052131 has 8 divisors (see below), whose sum is σ = 12443888064. Its totient is φ = 10366551720.

The previous prime is 11405052107. The next prime is 11405052151. The reversal of 11405052131 is 13125050411.

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

It is a cyclic number.

It is not a de Polignac number, because 11405052131 - 2¹⁸ = 11404789987 is a prime.

It is a super-2 number, since 2×11405052131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11405052097 and 11405052106.

It is not an unprimeable number, because it can be changed into a prime (11405052151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9965 + ... + 151358.

It is an arithmetic number, because the mean of its divisors is an integer number (1555486008).

Almost surely, 2^11405052131 is an apocalyptic number.

11405052131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11405052131 is a deficient number, since it is larger than the sum of its proper divisors (1038835933).

11405052131 is a wasteful number, since it uses less digits than its factorization.

11405052131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167761.

The product of its (nonzero) digits is 600, while the sum is 23.

The spelling of 11405052131 in words is "eleven billion, four hundred five million, fifty-two thousand, one hundred thirty-one".