981105401112 has 64 divisors (see below), whose sum is σ = 2537732160000. Its totient is φ = 315709451904.

The previous prime is 981105401093. The next prime is 981105401231. The reversal of 981105401112 is 211104501189.

It is a super-2 number, since 2×981105401112² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4560139 + ... + 4770437.

It is an arithmetic number, because the mean of its divisors is an integer number (39652065000).

Almost surely, 2^981105401112 is an apocalyptic number.

It is an amenable number.

981105401112 is an abundant number, since it is smaller than the sum of its proper divisors (1556626758888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

981105401112 is a wasteful number, since it uses less digits than its factorization.

981105401112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217040 (or 217036 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 33.

The spelling of 981105401112 in words is "nine hundred eighty-one billion, one hundred five million, four hundred one thousand, one hundred twelve".