1103203581983 has 4 divisors (see below), whose sum is σ = 1141245084840. Its totient is φ = 1065162079128.

The previous prime is 1103203581929. The next prime is 1103203582021. The reversal of 1103203581983 is 3891853023011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103203581983 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 (1103203581383) 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, 19020751385 + ... + 19020751442.

It is an arithmetic number, because the mean of its divisors is an integer number (285311271210).

Almost surely, 2^{1103203581983} is an apocalyptic number.

1103203581983 is a deficient number, since it is larger than the sum of its proper divisors (38041502857).

1103203581983 is an equidigital number, since it uses as much as digits as its factorization.

1103203581983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38041502856.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 1103203581983 in words is "one trillion, one hundred three billion, two hundred three million, five hundred eighty-one thousand, nine hundred eighty-three".