1103763720972 has 96 divisors (see below), whose sum is σ = 2844004794624. Its totient is φ = 330377344000.

The previous prime is 1103763720953. The next prime is 1103763720989. The reversal of 1103763720972 is 2790273673011.

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 31 ways as a sum of consecutive naturals, for example, 93525472 + ... + 93537272.

It is an arithmetic number, because the mean of its divisors is an integer number (29625049944).

Almost surely, 2^{1103763720972} is an apocalyptic number.

1103763720972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103763720972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422002397312).

1103763720972 is an abundant number, since it is smaller than the sum of its proper divisors (1740241073652).

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

1103763720972 is a wasteful number, since it uses less digits than its factorization.

1103763720972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20439 (or 20437 counting only the distinct ones).

The product of its (nonzero) digits is 666792, while the sum is 48.

The spelling of 1103763720972 in words is "one trillion, one hundred three billion, seven hundred sixty-three million, seven hundred twenty thousand, nine hundred seventy-two".