1122431641 has 2 divisors, whose sum is σ = 1122431642. Its totient is φ = 1122431640.

The previous prime is 1122431633. The next prime is 1122431657. The reversal of 1122431641 is 1461342211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1075577616 + 46854025 = 32796^2 + 6845^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122431641 - 2³ = 1122431633 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122431041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561215820 + 561215821.

It is an arithmetic number, because the mean of its divisors is an integer number (561215821).

Almost surely, 2^1122431641 is an apocalyptic number.

It is an amenable number.

1122431641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122431641 is an equidigital number, since it uses as much as digits as its factorization.

1122431641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 1122431641 is about 33502.7109500112. The cubic root of 1122431641 is about 1039.2498414942.

Adding to 1122431641 its reverse (1461342211), we get a palindrome (2583773852).

The spelling of 1122431641 in words is "one billion, one hundred twenty-two million, four hundred thirty-one thousand, six hundred forty-one".