1312222013 has 8 divisors (see below), whose sum is σ = 1401119808. Its totient is φ = 1225977984.

The previous prime is 1312222003. The next prime is 1312222019. The reversal of 1312222013 is 3102222131.

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

It is a cyclic number.

It is not a de Polignac number, because 1312222013 - 2¹² = 1312217917 is a prime.

It is a super-2 number, since 2×1312222013² = 3443853222803544338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312221982 and 1312222000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312222019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662420 + ... + 664397.

It is an arithmetic number, because the mean of its divisors is an integer number (175139976).

Almost surely, 2^1312222013 is an apocalyptic number.

It is an amenable number.

1312222013 is a deficient number, since it is larger than the sum of its proper divisors (88897795).

1312222013 is a wasteful number, since it uses less digits than its factorization.

1312222013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326883.

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

The square root of 1312222013 is about 36224.6050772124. The cubic root of 1312222013 is about 1094.8024811403.

Adding to 1312222013 its reverse (3102222131), we get a palindrome (4414444144).

The spelling of 1312222013 in words is "one billion, three hundred twelve million, two hundred twenty-two thousand, thirteen".