1369991323 has 2 divisors, whose sum is σ = 1369991324. Its totient is φ = 1369991322.

The previous prime is 1369991317. The next prime is 1369991419. The reversal of 1369991323 is 3231999631.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1369991323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1369991123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684995661 + 684995662.

It is an arithmetic number, because the mean of its divisors is an integer number (684995662).

Almost surely, 2^1369991323 is an apocalyptic number.

1369991323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1369991323 is an equidigital number, since it uses as much as digits as its factorization.

1369991323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 236196, while the sum is 46.

The square root of 1369991323 is about 37013.3938325034. The cubic root of 1369991323 is about 1110.6381966961.

The spelling of 1369991323 in words is "one billion, three hundred sixty-nine million, nine hundred ninety-one thousand, three hundred twenty-three".