1320877933 has 2 divisors, whose sum is σ = 1320877934. Its totient is φ = 1320877932.

The previous prime is 1320877931. The next prime is 1320877937. The reversal of 1320877933 is 3397780231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1183566409 + 137311524 = 34403^2 + 11718^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320877933 - 2¹ = 1320877931 is a prime.

Together with 1320877931, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1320877933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320877931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660438966 + 660438967.

It is an arithmetic number, because the mean of its divisors is an integer number (660438967).

Almost surely, 2^1320877933 is an apocalyptic number.

It is an amenable number.

1320877933 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320877933 is an equidigital number, since it uses as much as digits as its factorization.

1320877933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 1320877933 is about 36343.8843961402. The cubic root of 1320877933 is about 1097.2044531892.

The spelling of 1320877933 in words is "one billion, three hundred twenty million, eight hundred seventy-seven thousand, nine hundred thirty-three".