1023799585531 has 2 divisors, whose sum is σ = 1023799585532. Its totient is φ = 1023799585530.

The previous prime is 1023799585517. The next prime is 1023799585579. The reversal of 1023799585531 is 1355859973201.

It is a weak prime.

It is an emirp because it is prime and its reverse (1355859973201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1023799585531 - 2⁹ = 1023799585019 is a prime.

It is a super-2 number, since 2×1023799585531² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1023799585631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511899792765 + 511899792766.

It is an arithmetic number, because the mean of its divisors is an integer number (511899792766).

Almost surely, 2^{1023799585531} is an apocalyptic number.

1023799585531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023799585531 is an equidigital number, since it uses as much as digits as its factorization.

1023799585531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206000, while the sum is 58.

The spelling of 1023799585531 in words is "one trillion, twenty-three billion, seven hundred ninety-nine million, five hundred eighty-five thousand, five hundred thirty-one".