981111002 has 16 divisors (see below), whose sum is σ = 1520467200. Its totient is φ = 474316320.

The previous prime is 981110989. The next prime is 981111011. The reversal of 981111002 is 200111189.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71774 + ... + 84342.

It is an arithmetic number, because the mean of its divisors is an integer number (95029200).

Almost surely, 2^981111002 is an apocalyptic number.

981111002 is a deficient number, since it is larger than the sum of its proper divisors (539356198).

981111002 is a wasteful number, since it uses less digits than its factorization.

981111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13861.

The product of its (nonzero) digits is 144, while the sum is 23.

The square root of 981111002 is about 31322.6914871631. The cubic root of 981111002 is about 993.6636021982.

The spelling of 981111002 in words is "nine hundred eighty-one million, one hundred eleven thousand, two".