1089888480331 has 4 divisors (see below), whose sum is σ = 1245586834672. Its totient is φ = 934190125992.

The previous prime is 1089888480299. The next prime is 1089888480463. The reversal of 1089888480331 is 1330848889801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1089888480331 - 2⁵ = 1089888480299 is a prime.

It is a super-3 number, since 3×1089888480331³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 1089888480331.

It is not an unprimeable number, because it can be changed into a prime (1089888420331) 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, 77849177160 + ... + 77849177173.

It is an arithmetic number, because the mean of its divisors is an integer number (311396708668).

Almost surely, 2^{1089888480331} is an apocalyptic number.

1089888480331 is a deficient number, since it is larger than the sum of its proper divisors (155698354341).

1089888480331 is an equidigital number, since it uses as much as digits as its factorization.

1089888480331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155698354340.

The product of its (nonzero) digits is 10616832, while the sum is 61.

The spelling of 1089888480331 in words is "one trillion, eighty-nine billion, eight hundred eighty-eight million, four hundred eighty thousand, three hundred thirty-one".