1210002313231 has 4 divisors (see below), whose sum is σ = 1213868135632. Its totient is φ = 1206136490832.

The previous prime is 1210002313217. The next prime is 1210002313259. The reversal of 1210002313231 is 1323132000121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1210002313231 - 2⁹ = 1210002312719 is a prime.

It is a super-2 number, since 2×1210002313231² (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 = 1210002313199 and 1210002313208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210002313031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1932910731 + ... + 1932911356.

It is an arithmetic number, because the mean of its divisors is an integer number (303467033908).

Almost surely, 2^{1210002313231} is an apocalyptic number.

1210002313231 is a deficient number, since it is larger than the sum of its proper divisors (3865822401).

1210002313231 is an equidigital number, since it uses as much as digits as its factorization.

1210002313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865822400.

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

Adding to 1210002313231 its reverse (1323132000121), we get a palindrome (2533134313352).

The spelling of 1210002313231 in words is "one trillion, two hundred ten billion, two million, three hundred thirteen thousand, two hundred thirty-one".