1321112953 has 2 divisors, whose sum is σ = 1321112954. Its totient is φ = 1321112952.

The previous prime is 1321112941. The next prime is 1321113049. The reversal of 1321112953 is 3592111231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1247290489 + 73822464 = 35317^2 + 8592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321112953 is a prime.

It is a super-3 number, since 3×1321112953³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1321112153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660556476 + 660556477.

It is an arithmetic number, because the mean of its divisors is an integer number (660556477).

Almost surely, 2^1321112953 is an apocalyptic number.

It is an amenable number.

1321112953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321112953 is an equidigital number, since it uses as much as digits as its factorization.

1321112953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 28.

The square root of 1321112953 is about 36347.1175335817. The cubic root of 1321112953 is about 1097.2695234711.

The spelling of 1321112953 in words is "one billion, three hundred twenty-one million, one hundred twelve thousand, nine hundred fifty-three".