1103863374921 has 8 divisors (see below), whose sum is σ = 1486991213344. Its totient is φ = 728322226560.

The previous prime is 1103863374881. The next prime is 1103863374947. The reversal of 1103863374921 is 1294733683011.

It is a happy number.

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

It is not a de Polignac number, because 1103863374921 - 2²¹ = 1103861277769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103863375921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1896672175 + ... + 1896672756.

It is an arithmetic number, because the mean of its divisors is an integer number (185873901668).

Almost surely, 2^{1103863374921} is an apocalyptic number.

It is an amenable number.

1103863374921 is a deficient number, since it is larger than the sum of its proper divisors (383127838423).

1103863374921 is an equidigital number, since it uses as much as digits as its factorization.

1103863374921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3793345031.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 1103863374921 in words is "one trillion, one hundred three billion, eight hundred sixty-three million, three hundred seventy-four thousand, nine hundred twenty-one".