1210311210349 has 2 divisors, whose sum is σ = 1210311210350. Its totient is φ = 1210311210348.

The previous prime is 1210311210313. The next prime is 1210311210439. The reversal of 1210311210349 is 9430121130121.

Together with next prime (1210311210439) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 826859225124 + 383451985225 = 909318^2 + 619235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210311210349 - 2¹⁷ = 1210311079277 is a prime.

It is a super-2 number, since 2×1210311210349² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210311250349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605155605174 + 605155605175.

It is an arithmetic number, because the mean of its divisors is an integer number (605155605175).

Almost surely, 2^{1210311210349} is an apocalyptic number.

It is an amenable number.

1210311210349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210311210349 is an equidigital number, since it uses as much as digits as its factorization.

1210311210349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 1210311210349 in words is "one trillion, two hundred ten billion, three hundred eleven million, two hundred ten thousand, three hundred forty-nine".