44111331131 has 4 divisors (see below), whose sum is σ = 50412949872. Its totient is φ = 37809712392.

The previous prime is 44111331119. The next prime is 44111331137. The reversal of 44111331131 is 13113311144.

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 44111331131 - 2⁶ = 44111331067 is a prime.

It is a super-2 number, since 2×44111331131² (a number of 22 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 = 44111331097 and 44111331106.

It is not an unprimeable number, because it can be changed into a prime (44111331137) 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, 3150809360 + ... + 3150809373.

It is an arithmetic number, because the mean of its divisors is an integer number (12603237468).

Almost surely, 2^44111331131 is an apocalyptic number.

44111331131 is a deficient number, since it is larger than the sum of its proper divisors (6301618741).

44111331131 is an equidigital number, since it uses as much as digits as its factorization.

44111331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6301618740.

The product of its digits is 432, while the sum is 23.

Adding to 44111331131 its reverse (13113311144), we get a palindrome (57224642275).

The spelling of 44111331131 in words is "forty-four billion, one hundred eleven million, three hundred thirty-one thousand, one hundred thirty-one".