10891268031 has 8 divisors (see below), whose sum is σ = 16596217984. Its totient is φ = 6223581720.

The previous prime is 10891268021. The next prime is 10891268033. The reversal of 10891268031 is 13086219801.

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

It is not a de Polignac number, because 10891268031 - 2⁵ = 10891267999 is a prime.

It is a super-2 number, since 2×10891268031² (a number of 21 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 (10891268033) 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, 259315885 + ... + 259315926.

It is an arithmetic number, because the mean of its divisors is an integer number (2074527248).

Almost surely, 2^10891268031 is an apocalyptic number.

10891268031 is a deficient number, since it is larger than the sum of its proper divisors (5704949953).

10891268031 is an equidigital number, since it uses as much as digits as its factorization.

10891268031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518631821.

The product of its (nonzero) digits is 20736, while the sum is 39.

The spelling of 10891268031 in words is "ten billion, eight hundred ninety-one million, two hundred sixty-eight thousand, thirty-one".