1213110533 has 2 divisors, whose sum is σ = 1213110534. Its totient is φ = 1213110532.

The previous prime is 1213110523. The next prime is 1213110557. The reversal of 1213110533 is 3350113121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1180472164 + 32638369 = 34358^2 + 5713^2 .

It is an emirp because it is prime and its reverse (3350113121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213110533 - 2¹⁴ = 1213094149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213110523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606555266 + 606555267.

It is an arithmetic number, because the mean of its divisors is an integer number (606555267).

Almost surely, 2^1213110533 is an apocalyptic number.

It is an amenable number.

1213110533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213110533 is an equidigital number, since it uses as much as digits as its factorization.

1213110533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1213110533 is about 34829.7363326224. The cubic root of 1213110533 is about 1066.5145658883.

Adding to 1213110533 its reverse (3350113121), we get a palindrome (4563223654).

The spelling of 1213110533 in words is "one billion, two hundred thirteen million, one hundred ten thousand, five hundred thirty-three".