1312213016 has 8 divisors (see below), whose sum is σ = 2460399420. Its totient is φ = 656106504.

The previous prime is 1312213013. The next prime is 1312213031. The reversal of 1312213016 is 6103122131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312213013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82013306 + ... + 82013321.

Almost surely, 2^1312213016 is an apocalyptic number.

It is an amenable number.

1312213016 is a deficient number, since it is larger than the sum of its proper divisors (1148186404).

1312213016 is a wasteful number, since it uses less digits than its factorization.

1312213016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164026633 (or 164026629 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1312213016 is about 36224.4808934510. The cubic root of 1312213016 is about 1094.7999790331.

Adding to 1312213016 its reverse (6103122131), we get a palindrome (7415335147).

The spelling of 1312213016 in words is "one billion, three hundred twelve million, two hundred thirteen thousand, sixteen".