11312444331 has 12 divisors (see below), whose sum is σ = 16344754608. Its totient is φ = 7539526224.

The previous prime is 11312444303. The next prime is 11312444369. The reversal of 11312444331 is 13344421311.

11312444331 is a `hidden beast` number, since 11 + 312 + 4 + 4 + 4 + 331 = 666.

It is not a de Polignac number, because 11312444331 - 2¹³ = 11312436139 is a prime.

It is a super-2 number, since 2×11312444331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11312444295 and 11312444304.

It is not an unprimeable number, because it can be changed into a prime (11312444431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140860 + ... + 206073.

It is an arithmetic number, because the mean of its divisors is an integer number (1362062884).

Almost surely, 2^11312444331 is an apocalyptic number.

11312444331 is a deficient number, since it is larger than the sum of its proper divisors (5032310277).

11312444331 is a wasteful number, since it uses less digits than its factorization.

11312444331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350562 (or 350559 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 11312444331 its reverse (13344421311), we get a palindrome (24656865642).

The spelling of 11312444331 in words is "eleven billion, three hundred twelve million, four hundred forty-four thousand, three hundred thirty-one".