1213311202253 has 2 divisors, whose sum is σ = 1213311202254. Its totient is φ = 1213311202252.

The previous prime is 1213311202219. The next prime is 1213311202343. The reversal of 1213311202253 is 3522021133121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 999366100489 + 213945101764 = 999683^2 + 462542^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213311202253 - 2⁶ = 1213311202189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213311201253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606655601126 + 606655601127.

It is an arithmetic number, because the mean of its divisors is an integer number (606655601127).

Almost surely, 2^{1213311202253} is an apocalyptic number.

It is an amenable number.

1213311202253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213311202253 is an equidigital number, since it uses as much as digits as its factorization.

1213311202253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 1213311202253 its reverse (3522021133121), we get a palindrome (4735332335374).

The spelling of 1213311202253 in words is "one trillion, two hundred thirteen billion, three hundred eleven million, two hundred two thousand, two hundred fifty-three".