1111202444431 has 2 divisors, whose sum is σ = 1111202444432. Its totient is φ = 1111202444430.

The previous prime is 1111202444393. The next prime is 1111202444453. The reversal of 1111202444431 is 1344442021111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1111202444431 - 2²⁷ = 1111068226703 is a prime.

It is a super-2 number, since 2×1111202444431² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1111202444431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111202444831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555601222215 + 555601222216.

It is an arithmetic number, because the mean of its divisors is an integer number (555601222216).

Almost surely, 2^{1111202444431} is an apocalyptic number.

1111202444431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111202444431 is an equidigital number, since it uses as much as digits as its factorization.

1111202444431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 1111202444431 its reverse (1344442021111), we get a palindrome (2455644465542).

The spelling of 1111202444431 in words is "one trillion, one hundred eleven billion, two hundred two million, four hundred forty-four thousand, four hundred thirty-one".