1089023270091 has 16 divisors (see below), whose sum is σ = 1455321924000. Its totient is φ = 724371406848.

The previous prime is 1089023270089. The next prime is 1089023270129. The reversal of 1089023270091 is 1900723209801.

It is not a de Polignac number, because 1089023270091 - 2¹ = 1089023270089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1089023270591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3103335 + ... + 3436383.

It is an arithmetic number, because the mean of its divisors is an integer number (90957620250).

Almost surely, 2^{1089023270091} is an apocalyptic number.

1089023270091 is a deficient number, since it is larger than the sum of its proper divisors (366298653909).

1089023270091 is a wasteful number, since it uses less digits than its factorization.

1089023270091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335518.

The product of its (nonzero) digits is 54432, while the sum is 42.

Adding to 1089023270091 its reverse (1900723209801), we get a palindrome (2989746479892).

The spelling of 1089023270091 in words is "one trillion, eighty-nine billion, twenty-three million, two hundred seventy thousand, ninety-one".