11375544031 has 4 divisors (see below), whose sum is σ = 11767804200. Its totient is φ = 10983283864.

The previous prime is 11375544007. The next prime is 11375544053. The reversal of 11375544031 is 13044557311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13044557311 = 37 ⋅352555603.

It is a cyclic number.

It is not a de Polignac number, because 11375544031 - 2⁹ = 11375543519 is a prime.

It is a super-2 number, since 2×11375544031² (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 (11375544431) 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, 196130041 + ... + 196130098.

It is an arithmetic number, because the mean of its divisors is an integer number (2941951050).

Almost surely, 2^11375544031 is an apocalyptic number.

11375544031 is a deficient number, since it is larger than the sum of its proper divisors (392260169).

11375544031 is an equidigital number, since it uses as much as digits as its factorization.

11375544031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392260168.

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 11375544031 in words is "eleven billion, three hundred seventy-five million, five hundred forty-four thousand, thirty-one".