981101012 has 6 divisors (see below), whose sum is σ = 1716926778. Its totient is φ = 490550504.

The previous prime is 981100999. The next prime is 981101039. The reversal of 981101012 is 210101189.

It can be written as a sum of positive squares in only one way, i.e., 943964176 + 37136836 = 30724^2 + 6094^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122637623 + ... + 122637630.

It is an arithmetic number, because the mean of its divisors is an integer number (286154463).

Almost surely, 2^981101012 is an apocalyptic number.

It is an amenable number.

981101012 is a deficient number, since it is larger than the sum of its proper divisors (735825766).

981101012 is a wasteful number, since it uses less digits than its factorization.

981101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245275257 (or 245275255 counting only the distinct ones).

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

The square root of 981101012 is about 31322.5320177025. The cubic root of 981101012 is about 993.6602295819.

The spelling of 981101012 in words is "nine hundred eighty-one million, one hundred one thousand, twelve".