2131213413223 has 4 divisors (see below), whose sum is σ = 2131217143200. Its totient is φ = 2131209683248.

The previous prime is 2131213413221. The next prime is 2131213413299. The reversal of 2131213413223 is 3223143121312.

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 2131213413223 - 2¹ = 2131213413221 is a prime.

It is a super-2 number, since 2×2131213413223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131213413191 and 2131213413200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131213413221) 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, 808390 + ... + 2217187.

It is an arithmetic number, because the mean of its divisors is an integer number (532804285800).

Almost surely, 2^{2131213413223} is an apocalyptic number.

2131213413223 is a deficient number, since it is larger than the sum of its proper divisors (3729977).

2131213413223 is an equidigital number, since it uses as much as digits as its factorization.

2131213413223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729976.

The product of its digits is 5184, while the sum is 28.

Adding to 2131213413223 its reverse (3223143121312), we get a palindrome (5354356534535).

The spelling of 2131213413223 in words is "two trillion, one hundred thirty-one billion, two hundred thirteen million, four hundred thirteen thousand, two hundred twenty-three".