1031699889601 has 4 divisors (see below), whose sum is σ = 1041341944752. Its totient is φ = 1022057834452.

The previous prime is 1031699889593. The next prime is 1031699889679. The reversal of 1031699889601 is 1069889961301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1031699889601 - 2³ = 1031699889593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031699889601.

It is not an unprimeable number, because it can be changed into a prime (1031699889691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4821027415 + ... + 4821027628.

It is an arithmetic number, because the mean of its divisors is an integer number (260335486188).

Almost surely, 2^{1031699889601} is an apocalyptic number.

It is an amenable number.

1031699889601 is a deficient number, since it is larger than the sum of its proper divisors (9642055151).

1031699889601 is an equidigital number, since it uses as much as digits as its factorization.

1031699889601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9642055150.

The product of its (nonzero) digits is 5038848, while the sum is 61.

The spelling of 1031699889601 in words is "one trillion, thirty-one billion, six hundred ninety-nine million, eight hundred eighty-nine thousand, six hundred one".