2120344442003 has 4 divisors (see below), whose sum is σ = 2122284373968. Its totient is φ = 2118404510040.

The previous prime is 2120344441997. The next prime is 2120344442137. The reversal of 2120344442003 is 3002444430212.

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

It is a cyclic number.

It is not a de Polignac number, because 2120344442003 - 2⁴ = 2120344441987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120344441003) 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, 969964343 + ... + 969966528.

It is an arithmetic number, because the mean of its divisors is an integer number (530571093492).

Almost surely, 2^{2120344442003} is an apocalyptic number.

2120344442003 is a deficient number, since it is larger than the sum of its proper divisors (1939931965).

2120344442003 is a wasteful number, since it uses less digits than its factorization.

2120344442003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939931964.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 2120344442003 its reverse (3002444430212), we get a palindrome (5122788872215).

The spelling of 2120344442003 in words is "two trillion, one hundred twenty billion, three hundred forty-four million, four hundred forty-two thousand, three".