1231413223 has 2 divisors, whose sum is σ = 1231413224. Its totient is φ = 1231413222.

The previous prime is 1231413203. The next prime is 1231413233. The reversal of 1231413223 is 3223141321.

It is a strong prime.

It is an emirp because it is prime and its reverse (3223141321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1231413223 - 2²⁹ = 694542311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1231413194 and 1231413203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231413203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615706611 + 615706612.

It is an arithmetic number, because the mean of its divisors is an integer number (615706612).

Almost surely, 2^1231413223 is an apocalyptic number.

1231413223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231413223 is an equidigital number, since it uses as much as digits as its factorization.

1231413223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 1231413223 is about 35091.4978734166. The cubic root of 1231413223 is about 1071.8514609920.

Adding to 1231413223 its reverse (3223141321), we get a palindrome (4454554544).

The spelling of 1231413223 in words is "one billion, two hundred thirty-one million, four hundred thirteen thousand, two hundred twenty-three".