1023204742499 has 2 divisors, whose sum is σ = 1023204742500. Its totient is φ = 1023204742498.

The previous prime is 1023204742489. The next prime is 1023204742531. The reversal of 1023204742499 is 9942474023201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1023204742499 - 2⁸ = 1023204742243 is a prime.

It is not a weakly prime, because it can be changed into another prime (1023204742429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511602371249 + 511602371250.

It is an arithmetic number, because the mean of its divisors is an integer number (511602371250).

Almost surely, 2^{1023204742499} is an apocalyptic number.

1023204742499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023204742499 is an equidigital number, since it uses as much as digits as its factorization.

1023204742499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 1023204742499 in words is "one trillion, twenty-three billion, two hundred four million, seven hundred forty-two thousand, four hundred ninety-nine".