1100054997820 has 12 divisors (see below), whose sum is σ = 2310115495464. Its totient is φ = 440021999120.

The previous prime is 1100054997779. The next prime is 1100054997871. The reversal of 1100054997820 is 287994500011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27501374926 + ... + 27501374965.

It is an arithmetic number, because the mean of its divisors is an integer number (192509624622).

Almost surely, 2^{1100054997820} is an apocalyptic number.

1100054997820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100054997820 is an abundant number, since it is smaller than the sum of its proper divisors (1210060497644).

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

1100054997820 is a wasteful number, since it uses less digits than its factorization.

1100054997820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55002749900 (or 55002749898 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 1100054997820 in words is "one trillion, one hundred billion, fifty-four million, nine hundred ninety-seven thousand, eight hundred twenty".