1023503969 has 2 divisors, whose sum is σ = 1023503970. Its totient is φ = 1023503968.

The previous prime is 1023503963. The next prime is 1023504011. The reversal of 1023503969 is 9693053201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 947900944 + 75603025 = 30788^2 + 8695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023503969 - 2²⁴ = 1006726753 is a prime.

It is a super-2 number, since 2×1023503969² = 2095120749117505922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1023503963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511751984 + 511751985.

It is an arithmetic number, because the mean of its divisors is an integer number (511751985).

Almost surely, 2^1023503969 is an apocalyptic number.

It is an amenable number.

1023503969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023503969 is an equidigital number, since it uses as much as digits as its factorization.

1023503969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 1023503969 is about 31992.2485768037. The cubic root of 1023503969 is about 1007.7740636563.

The spelling of 1023503969 in words is "one billion, twenty-three million, five hundred three thousand, nine hundred sixty-nine".