1312210120231 has 8 divisors (see below), whose sum is σ = 1320198719760. Its totient is φ = 1304233784832.

The previous prime is 1312210120213. The next prime is 1312210120259. The reversal of 1312210120231 is 1320210122131.

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 1312210120231 - 2⁹ = 1312210119719 is a prime.

It is a super-2 number, since 2×1312210120231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312210120199 and 1312210120208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312210120201) 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, 2851345 + ... + 3279418.

It is an arithmetic number, because the mean of its divisors is an integer number (165024839970).

Almost surely, 2^{1312210120231} is an apocalyptic number.

1312210120231 is a deficient number, since it is larger than the sum of its proper divisors (7988599529).

1312210120231 is a wasteful number, since it uses less digits than its factorization.

1312210120231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6132065.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1312210120231 its reverse (1320210122131), we get a palindrome (2632420242362).

The spelling of 1312210120231 in words is "one trillion, three hundred twelve billion, two hundred ten million, one hundred twenty thousand, two hundred thirty-one".