1940203021121 has 8 divisors (see below), whose sum is σ = 2008627555584. Its totient is φ = 1872909470880.

The previous prime is 1940203021103. The next prime is 1940203021129. The reversal of 1940203021121 is 1211203020491.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1940203021121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1940203021129) 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, 282742565 + ... + 282749426.

It is an arithmetic number, because the mean of its divisors is an integer number (251078444448).

Almost surely, 2^{1940203021121} is an apocalyptic number.

It is an amenable number.

1940203021121 is a deficient number, since it is larger than the sum of its proper divisors (68424534463).

1940203021121 is an equidigital number, since it uses as much as digits as its factorization.

1940203021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565492111.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 1940203021121 in words is "one trillion, nine hundred forty billion, two hundred three million, twenty-one thousand, one hundred twenty-one".