1312223102 has 4 divisors (see below), whose sum is σ = 1968334656. Its totient is φ = 656111550.

The previous prime is 1312223089. The next prime is 1312223119. The reversal of 1312223102 is 2013222131.

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

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, 328055774 + ... + 328055777.

It is an arithmetic number, because the mean of its divisors is an integer number (492083664).

Almost surely, 2^1312223102 is an apocalyptic number.

1312223102 is a deficient number, since it is larger than the sum of its proper divisors (656111554).

1312223102 is an equidigital number, since it uses as much as digits as its factorization.

1312223102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656111553.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1312223102 is about 36224.6201084290. The cubic root of 1312223102 is about 1094.8027839954.

Adding to 1312223102 its reverse (2013222131), we get a palindrome (3325445233).

The spelling of 1312223102 in words is "one billion, three hundred twelve million, two hundred twenty-three thousand, one hundred two".