1312230422 has 4 divisors (see below), whose sum is σ = 1968345636. Its totient is φ = 656115210.

The previous prime is 1312230401. The next prime is 1312230487. The reversal of 1312230422 is 2240322131.

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

It is a junction number, because it is equal to n+sod(n) for n = 1312230394 and 1312230403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328057604 + ... + 328057607.

It is an arithmetic number, because the mean of its divisors is an integer number (492086409).

Almost surely, 2^1312230422 is an apocalyptic number.

1312230422 is a deficient number, since it is larger than the sum of its proper divisors (656115214).

1312230422 is an equidigital number, since it uses as much as digits as its factorization.

1312230422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656115213.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1312230422 is about 36224.7211445444. The cubic root of 1312230422 is about 1094.8048197116.

Adding to 1312230422 its reverse (2240322131), we get a palindrome (3552552553).

The spelling of 1312230422 in words is "one billion, three hundred twelve million, two hundred thirty thousand, four hundred twenty-two".