2115244422431 has 12 divisors (see below), whose sum is σ = 2463172446672. Its totient is φ = 1811164124448.

The previous prime is 2115244422427. The next prime is 2115244422491. The reversal of 2115244422431 is 1342244425112.

It is not a de Polignac number, because 2115244422431 - 2² = 2115244422427 is a prime.

It is a super-2 number, since 2×2115244422431² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2115244422391 and 2115244422400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115244422491) 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, 22601915 + ... + 22695308.

It is an arithmetic number, because the mean of its divisors is an integer number (205264370556).

Almost surely, 2^{2115244422431} is an apocalyptic number.

2115244422431 is a deficient number, since it is larger than the sum of its proper divisors (347928024241).

2115244422431 is an equidigital number, since it uses as much as digits as its factorization.

2115244422431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45298190 (or 45298183 counting only the distinct ones).

The product of its digits is 61440, while the sum is 35.

Adding to 2115244422431 its reverse (1342244425112), we get a palindrome (3457488847543).

The spelling of 2115244422431 in words is "two trillion, one hundred fifteen billion, two hundred forty-four million, four hundred twenty-two thousand, four hundred thirty-one".