2203020312123 has 4 divisors (see below), whose sum is σ = 2937360416168. Its totient is φ = 1468680208080.

The previous prime is 2203020312121. The next prime is 2203020312173. The reversal of 2203020312123 is 3212130203022.

It is a happy number.

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

It is not a de Polignac number, because 2203020312123 - 2¹ = 2203020312121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2203020312123.

It is not an unprimeable number, because it can be changed into a prime (2203020312121) 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, 367170052018 + ... + 367170052023.

It is an arithmetic number, because the mean of its divisors is an integer number (734340104042).

Almost surely, 2^{2203020312123} is an apocalyptic number.

2203020312123 is a deficient number, since it is larger than the sum of its proper divisors (734340104045).

2203020312123 is an equidigital number, since it uses as much as digits as its factorization.

2203020312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734340104044.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2203020312123 its reverse (3212130203022), we get a palindrome (5415150515145).

The spelling of 2203020312123 in words is "two trillion, two hundred three billion, twenty million, three hundred twelve thousand, one hundred twenty-three".