1161303021983 has 8 divisors (see below), whose sum is σ = 1251123161568. Its totient is φ = 1071552759264.

The previous prime is 1161303021947. The next prime is 1161303022051. The reversal of 1161303021983 is 3891203031611.

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

It is not a de Polignac number, because 1161303021983 - 2²⁰ = 1161301973407 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 (1161303021913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17434691 + ... + 17501172.

It is an arithmetic number, because the mean of its divisors is an integer number (156390395196).

Almost surely, 2^{1161303021983} is an apocalyptic number.

1161303021983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1161303021983 is a deficient number, since it is larger than the sum of its proper divisors (89820139585).

1161303021983 is a wasteful number, since it uses less digits than its factorization.

1161303021983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34938433.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 1161303021983 in words is "one trillion, one hundred sixty-one billion, three hundred three million, twenty-one thousand, nine hundred eighty-three".