2203143213121 has 4 divisors (see below), whose sum is σ = 2203463863744. Its totient is φ = 2202822562500.

The previous prime is 2203143213101. The next prime is 2203143213203. The reversal of 2203143213121 is 1213123413022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2203143213121 is a prime.

It is a super-2 number, since 2×2203143213121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2203143213101) 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, 160315005 + ... + 160328746.

It is an arithmetic number, because the mean of its divisors is an integer number (550865965936).

Almost surely, 2^{2203143213121} is an apocalyptic number.

It is an amenable number.

2203143213121 is a deficient number, since it is larger than the sum of its proper divisors (320650623).

2203143213121 is an equidigital number, since it uses as much as digits as its factorization.

2203143213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320650622.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 2203143213121 its reverse (1213123413022), we get a palindrome (3416266626143).

The spelling of 2203143213121 in words is "two trillion, two hundred three billion, one hundred forty-three million, two hundred thirteen thousand, one hundred twenty-one".