1213114291 has 2 divisors, whose sum is σ = 1213114292. Its totient is φ = 1213114290.

The previous prime is 1213114249. The next prime is 1213114361. The reversal of 1213114291 is 1924113121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213114291 - 2¹⁹ = 1212590003 is a prime.

It is a super-3 number, since 3×1213114291³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1213114211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606557145 + 606557146.

It is an arithmetic number, because the mean of its divisors is an integer number (606557146).

Almost surely, 2^1213114291 is an apocalyptic number.

1213114291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213114291 is an equidigital number, since it uses as much as digits as its factorization.

1213114291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 25.

The square root of 1213114291 is about 34829.7902807353. The cubic root of 1213114291 is about 1066.5156671777.

The spelling of 1213114291 in words is "one billion, two hundred thirteen million, one hundred fourteen thousand, two hundred ninety-one".