981021111102001 has 8 divisors (see below), whose sum is σ = 991310133030624. Its totient is φ = 970774518130560.

The previous prime is 981021111101963. The next prime is 981021111102031. The reversal of 981021111102001 is 100201111120189.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 981021111102001 - 2⁹ = 981021111101489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981021111102031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10607192811 + ... + 10607285296.

It is an arithmetic number, because the mean of its divisors is an integer number (123913766628828).

Almost surely, 2^{981021111102001} is an apocalyptic number.

It is an amenable number.

981021111102001 is a deficient number, since it is larger than the sum of its proper divisors (10289021928623).

981021111102001 is a wasteful number, since it uses less digits than its factorization.

981021111102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21214478591.

The product of its (nonzero) digits is 288, while the sum is 28.

The spelling of 981021111102001 in words is "nine hundred eighty-one trillion, twenty-one billion, one hundred eleven million, one hundred two thousand, one".