2213423031431 has 4 divisors (see below), whose sum is σ = 2223173793912. Its totient is φ = 2203672268952.

The previous prime is 2213423031409. The next prime is 2213423031511. The reversal of 2213423031431 is 1341303243122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2213423031431 is a prime.

It is a super-2 number, since 2×2213423031431² (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 = 2213423031394 and 2213423031403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213423036431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4875380900 + ... + 4875381353.

It is an arithmetic number, because the mean of its divisors is an integer number (555793448478).

Almost surely, 2^{2213423031431} is an apocalyptic number.

2213423031431 is a deficient number, since it is larger than the sum of its proper divisors (9750762481).

2213423031431 is an equidigital number, since it uses as much as digits as its factorization.

2213423031431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9750762480.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 2213423031431 its reverse (1341303243122), we get a palindrome (3554726274553).

The spelling of 2213423031431 in words is "two trillion, two hundred thirteen billion, four hundred twenty-three million, thirty-one thousand, four hundred thirty-one".