1312020303231 has 8 divisors (see below), whose sum is σ = 1908393168384. Its totient is φ = 795163820120.

The previous prime is 1312020303229. The next prime is 1312020303277. The reversal of 1312020303231 is 1323030202131.

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 1312020303231 - 2¹ = 1312020303229 is a prime.

It is a super-2 number, since 2×1312020303231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312020303198 and 1312020303207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312020308231) 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, 19879095471 + ... + 19879095536.

It is an arithmetic number, because the mean of its divisors is an integer number (238549146048).

Almost surely, 2^{1312020303231} is an apocalyptic number.

1312020303231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1312020303231 is a deficient number, since it is larger than the sum of its proper divisors (596372865153).

1312020303231 is a wasteful number, since it uses less digits than its factorization.

1312020303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39758191021.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1312020303231 its reverse (1323030202131), we get a palindrome (2635050505362).

The spelling of 1312020303231 in words is "one trillion, three hundred twelve billion, twenty million, three hundred three thousand, two hundred thirty-one".