1313252236231 has 32 divisors (see below), whose sum is σ = 1576606852800. Its totient is φ = 1080650833920.

The previous prime is 1313252236171. The next prime is 1313252236267. The reversal of 1313252236231 is 1326322523131.

It is not a de Polignac number, because 1313252236231 - 2¹⁹ = 1313251711943 is a prime.

It is a super-2 number, since 2×1313252236231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313252236031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21842571 + ... + 21902611.

It is an arithmetic number, because the mean of its divisors is an integer number (49268964150).

Almost surely, 2^{1313252236231} is an apocalyptic number.

1313252236231 is a deficient number, since it is larger than the sum of its proper divisors (263354616569).

1313252236231 is a wasteful number, since it uses less digits than its factorization.

1313252236231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65299.

The product of its digits is 38880, while the sum is 34.

Adding to 1313252236231 its reverse (1326322523131), we get a palindrome (2639574759362).

The spelling of 1313252236231 in words is "one trillion, three hundred thirteen billion, two hundred fifty-two million, two hundred thirty-six thousand, two hundred thirty-one".