1312313133 has 8 divisors (see below), whose sum is σ = 1810087200. Its totient is φ = 844707248.

The previous prime is 1312313131. The next prime is 1312313137. The reversal of 1312313133 is 3313132131.

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 1312313133 - 2¹ = 1312313131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312313131) 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, 7541943 + ... + 7542116.

It is an arithmetic number, because the mean of its divisors is an integer number (226260900).

Almost surely, 2^1312313133 is an apocalyptic number.

It is an amenable number.

1312313133 is a deficient number, since it is larger than the sum of its proper divisors (497774067).

1312313133 is a wasteful number, since it uses less digits than its factorization.

1312313133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15084091.

The product of its digits is 486, while the sum is 21.

The square root of 1312313133 is about 36225.8627640530. The cubic root of 1312313133 is about 1094.8278213881.

Adding to 1312313133 its reverse (3313132131), we get a palindrome (4625445264).

The spelling of 1312313133 in words is "one billion, three hundred twelve million, three hundred thirteen thousand, one hundred thirty-three".