1212033431393 has 2 divisors, whose sum is σ = 1212033431394. Its totient is φ = 1212033431392.

The previous prime is 1212033431363. The next prime is 1212033431501. The reversal of 1212033431393 is 3931343302121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 860345292304 + 351688139089 = 927548^2 + 593033^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212033431393 - 2¹⁴ = 1212033415009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212033431333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606016715696 + 606016715697.

It is an arithmetic number, because the mean of its divisors is an integer number (606016715697).

Almost surely, 2^{1212033431393} is an apocalyptic number.

It is an amenable number.

1212033431393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212033431393 is an equidigital number, since it uses as much as digits as its factorization.

1212033431393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 35.

The spelling of 1212033431393 in words is "one trillion, two hundred twelve billion, thirty-three million, four hundred thirty-one thousand, three hundred ninety-three".