1211231310293 has 2 divisors, whose sum is σ = 1211231310294. Its totient is φ = 1211231310292.

The previous prime is 1211231310203. The next prime is 1211231310313. The reversal of 1211231310293 is 3920131321121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1026264224209 + 184967086084 = 1013047^2 + 430078^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211231310293 - 2³⁴ = 1194051441109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211231310203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605615655146 + 605615655147.

It is an arithmetic number, because the mean of its divisors is an integer number (605615655147).

Almost surely, 2^{1211231310293} is an apocalyptic number.

It is an amenable number.

1211231310293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211231310293 is an equidigital number, since it uses as much as digits as its factorization.

1211231310293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 1211231310293 in words is "one trillion, two hundred eleven billion, two hundred thirty-one million, three hundred ten thousand, two hundred ninety-three".