1312142213 has 8 divisors (see below), whose sum is σ = 1321161408. Its totient is φ = 1303137184.

The previous prime is 1312142141. The next prime is 1312142233. The reversal of 1312142213 is 3122412131.

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 1312142213 - 2¹⁰ = 1312141189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312142233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236570 + ... + 242052.

It is an arithmetic number, because the mean of its divisors is an integer number (165145176).

Almost surely, 2^1312142213 is an apocalyptic number.

It is an amenable number.

1312142213 is a deficient number, since it is larger than the sum of its proper divisors (9019195).

1312142213 is a wasteful number, since it uses less digits than its factorization.

1312142213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7083.

The product of its digits is 288, while the sum is 20.

The square root of 1312142213 is about 36223.5035991827. The cubic root of 1312142213 is about 1094.7802879930.

Adding to 1312142213 its reverse (3122412131), we get a palindrome (4434554344).

The spelling of 1312142213 in words is "one billion, three hundred twelve million, one hundred forty-two thousand, two hundred thirteen".