1019992942823 has 2 divisors, whose sum is σ = 1019992942824. Its totient is φ = 1019992942822.

The previous prime is 1019992942783. The next prime is 1019992942831. The reversal of 1019992942823 is 3282492999101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1019992942823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1019992242823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509996471411 + 509996471412.

It is an arithmetic number, because the mean of its divisors is an integer number (509996471412).

Almost surely, 2^{1019992942823} is an apocalyptic number.

1019992942823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1019992942823 is an equidigital number, since it uses as much as digits as its factorization.

1019992942823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5038848, while the sum is 59.

The spelling of 1019992942823 in words is "one trillion, nineteen billion, nine hundred ninety-two million, nine hundred forty-two thousand, eight hundred twenty-three".