1312000213231 has 2 divisors, whose sum is σ = 1312000213232. Its totient is φ = 1312000213230.

The previous prime is 1312000213201. The next prime is 1312000213243. The reversal of 1312000213231 is 1323120002131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312000213231 - 2³⁵ = 1277640474863 is a prime.

It is a super-2 number, since 2×1312000213231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312000213199 and 1312000213208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312000213201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656000106615 + 656000106616.

It is an arithmetic number, because the mean of its divisors is an integer number (656000106616).

Almost surely, 2^{1312000213231} is an apocalyptic number.

1312000213231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312000213231 is an equidigital number, since it uses as much as digits as its factorization.

1312000213231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1312000213231 its reverse (1323120002131), we get a palindrome (2635120215362).

The spelling of 1312000213231 in words is "one trillion, three hundred twelve billion, two hundred thirteen thousand, two hundred thirty-one".