981012010111 has 4 divisors (see below), whose sum is σ = 1121156582992. Its totient is φ = 840867437232.

The previous prime is 981012010109. The next prime is 981012010123. The reversal of 981012010111 is 111010210189.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 981012010111 - 2¹ = 981012010109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981012010141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70072286430 + ... + 70072286443.

It is an arithmetic number, because the mean of its divisors is an integer number (280289145748).

Almost surely, 2^981012010111 is an apocalyptic number.

981012010111 is a deficient number, since it is larger than the sum of its proper divisors (140144572881).

981012010111 is a wasteful number, since it uses less digits than its factorization.

981012010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140144572880.

The product of its (nonzero) digits is 144, while the sum is 25.

The spelling of 981012010111 in words is "nine hundred eighty-one billion, twelve million, ten thousand, one hundred eleven".