10313223221991 has 8 divisors (see below), whose sum is σ = 13788432865024. Its totient is φ = 6856747863480.

The previous prime is 10313223221989. The next prime is 10313223222013. The reversal of 10313223221991 is 19912232231301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10313223221991 - 2¹ = 10313223221989 is a prime.

It is a super-2 number, since 2×10313223221991² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10313223221911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4683569845 + ... + 4683572046.

It is an arithmetic number, because the mean of its divisors is an integer number (1723554108128).

Almost surely, 2^{10313223221991} is an apocalyptic number.

10313223221991 is a deficient number, since it is larger than the sum of its proper divisors (3475209643033).

10313223221991 is an equidigital number, since it uses as much as digits as its factorization.

10313223221991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9367142261.

The product of its (nonzero) digits is 34992, while the sum is 39.

The spelling of 10313223221991 in words is "ten trillion, three hundred thirteen billion, two hundred twenty-three million, two hundred twenty-one thousand, nine hundred ninety-one".