1313212113231 has 8 divisors (see below), whose sum is σ = 1768285618224. Its totient is φ = 866806675200.

The previous prime is 1313212113229. The next prime is 1313212113233. The reversal of 1313212113231 is 1323112123131.

It is an interprime number because it is at equal distance from previous prime (1313212113229) and next prime (1313212113233).

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

It is not a de Polignac number, because 1313212113231 - 2¹ = 1313212113229 is a prime.

It is a super-2 number, since 2×1313212113231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313212113233) 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, 2167016386 + ... + 2167016991.

It is an arithmetic number, because the mean of its divisors is an integer number (221035702278).

Almost surely, 2^{1313212113231} is an apocalyptic number.

1313212113231 is a deficient number, since it is larger than the sum of its proper divisors (455073504993).

1313212113231 is a wasteful number, since it uses less digits than its factorization.

1313212113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4334033481.

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

Adding to 1313212113231 its reverse (1323112123131), we get a palindrome (2636324236362).

The spelling of 1313212113231 in words is "one trillion, three hundred thirteen billion, two hundred twelve million, one hundred thirteen thousand, two hundred thirty-one".