890000111001 has 16 divisors (see below), whose sum is σ = 1214029848960. Its totient is φ = 579799799040.

The previous prime is 890000110999. The next prime is 890000111051. The reversal of 890000111001 is 100111000098.

It is not a de Polignac number, because 890000111001 - 2¹ = 890000110999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (890000111051) 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, 18464446 + ... + 18512583.

It is an arithmetic number, because the mean of its divisors is an integer number (75876865560).

Almost surely, 2^890000111001 is an apocalyptic number.

It is an amenable number.

890000111001 is a deficient number, since it is larger than the sum of its proper divisors (324029737959).

890000111001 is a wasteful number, since it uses less digits than its factorization.

890000111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36977216.

The product of its (nonzero) digits is 72, while the sum is 21.

Adding to 890000111001 its reverse (100111000098), we get a palindrome (990111111099).

It can be divided in two parts, 890000 and 111001, that added together give a palindrome (1001001).

The spelling of 890000111001 in words is "eight hundred ninety billion, one hundred eleven thousand, one".