1312201329 has 8 divisors (see below), whose sum is σ = 1749789312. Its totient is φ = 874707120.

The previous prime is 1312201327. The next prime is 1312201361. The reversal of 1312201329 is 9231022131.

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

It is not a de Polignac number, because 1312201329 - 2¹ = 1312201327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312201299 and 1312201308.

It is not an unprimeable number, because it can be changed into a prime (1312201327) 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, 21544 + ... + 55574.

It is an arithmetic number, because the mean of its divisors is an integer number (218723664).

Almost surely, 2^1312201329 is an apocalyptic number.

It is an amenable number.

1312201329 is a deficient number, since it is larger than the sum of its proper divisors (437587983).

1312201329 is a wasteful number, since it uses less digits than its factorization.

1312201329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46887.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1312201329 is about 36224.3195795311. The cubic root of 1312201329 is about 1094.7967288074.

The spelling of 1312201329 in words is "one billion, three hundred twelve million, two hundred one thousand, three hundred twenty-nine".