1122323557 has 2 divisors, whose sum is σ = 1122323558. Its totient is φ = 1122323556.

The previous prime is 1122323551. The next prime is 1122323581. The reversal of 1122323557 is 7553232211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 741527361 + 380796196 = 27231^2 + 19514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122323557 is a prime.

It is a super-2 number, since 2×1122323557² = 2519220333194264498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122323551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561161778 + 561161779.

It is an arithmetic number, because the mean of its divisors is an integer number (561161779).

Almost surely, 2^1122323557 is an apocalyptic number.

It is an amenable number.

1122323557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122323557 is an equidigital number, since it uses as much as digits as its factorization.

1122323557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 31.

The square root of 1122323557 is about 33501.0978476825. The cubic root of 1122323557 is about 1039.2164824068.

Adding to 1122323557 its reverse (7553232211), we get a palindrome (8675555768).

The spelling of 1122323557 in words is "one billion, one hundred twenty-two million, three hundred twenty-three thousand, five hundred fifty-seven".