1121344031 has 2 divisors, whose sum is σ = 1121344032. Its totient is φ = 1121344030.

The previous prime is 1121344009. The next prime is 1121344043. The reversal of 1121344031 is 1304431211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121344031 - 2²² = 1117149727 is a prime.

It is a super-2 number, since 2×1121344031² = 2514824871718657922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121343994 and 1121344012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121344061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560672015 + 560672016.

It is an arithmetic number, because the mean of its divisors is an integer number (560672016).

Almost surely, 2^1121344031 is an apocalyptic number.

1121344031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121344031 is an equidigital number, since it uses as much as digits as its factorization.

1121344031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1121344031 is about 33486.4753445328. The cubic root of 1121344031 is about 1038.9140634230.

Adding to 1121344031 its reverse (1304431211), we get a palindrome (2425775242).

The spelling of 1121344031 in words is "one billion, one hundred twenty-one million, three hundred forty-four thousand, thirty-one".