1312243022 has 8 divisors (see below), whose sum is σ = 2084150736. Its totient is φ = 617526112.

The previous prime is 1312243019. The next prime is 1312243027. The reversal of 1312243022 is 2203422131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1312242985 and 1312243003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312243027) 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, 19297658 + ... + 19297725.

It is an arithmetic number, because the mean of its divisors is an integer number (260518842).

Almost surely, 2^1312243022 is an apocalyptic number.

1312243022 is a deficient number, since it is larger than the sum of its proper divisors (771907714).

1312243022 is a wasteful number, since it uses less digits than its factorization.

1312243022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38595402.

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

The square root of 1312243022 is about 36224.8950585091. The cubic root of 1312243022 is about 1094.8083237956.

Adding to 1312243022 its reverse (2203422131), we get a palindrome (3515665153).

The spelling of 1312243022 in words is "one billion, three hundred twelve million, two hundred forty-three thousand, twenty-two".