881021231 has 8 divisors (see below), whose sum is σ = 899321904. Its totient is φ = 862845120.

The previous prime is 881021153. The next prime is 881021237. The reversal of 881021231 is 132120188.

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

It is a cyclic number.

It is not a de Polignac number, because 881021231 - 2²² = 876826927 is a prime.

It is a super-2 number, since 2×881021231² = 1552396818945510722, which contains 22 as substring.

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 881021231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881021237) 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, 16781 + ... + 45206.

It is an arithmetic number, because the mean of its divisors is an integer number (112415238).

Almost surely, 2^881021231 is an apocalyptic number.

881021231 is a deficient number, since it is larger than the sum of its proper divisors (18300673).

881021231 is a wasteful number, since it uses less digits than its factorization.

881021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62281.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 881021231 is about 29682.0018024391. The cubic root of 881021231 is about 958.6545210259.

The spelling of 881021231 in words is "eight hundred eighty-one million, twenty-one thousand, two hundred thirty-one".