2045404240203 has 4 divisors (see below), whose sum is σ = 2727205653608. Its totient is φ = 1363602826800.

The previous prime is 2045404240189. The next prime is 2045404240207. The reversal of 2045404240203 is 3020424045402.

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

It is not a de Polignac number, because 2045404240203 - 2⁸ = 2045404239947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045404240207) 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, 340900706698 + ... + 340900706703.

It is an arithmetic number, because the mean of its divisors is an integer number (681801413402).

Almost surely, 2^{2045404240203} is an apocalyptic number.

2045404240203 is a deficient number, since it is larger than the sum of its proper divisors (681801413405).

2045404240203 is an equidigital number, since it uses as much as digits as its factorization.

2045404240203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681801413404.

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 2045404240203 its reverse (3020424045402), we get a palindrome (5065828285605).

The spelling of 2045404240203 in words is "two trillion, forty-five billion, four hundred four million, two hundred forty thousand, two hundred three".