1212023411 has 2 divisors, whose sum is σ = 1212023412. Its totient is φ = 1212023410.

The previous prime is 1212023389. The next prime is 1212023431. The reversal of 1212023411 is 1143202121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212023411 - 2¹⁰ = 1212022387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212023411.

It is not a weakly prime, because it can be changed into another prime (1212023431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606011705 + 606011706.

It is an arithmetic number, because the mean of its divisors is an integer number (606011706).

Almost surely, 2^1212023411 is an apocalyptic number.

1212023411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212023411 is an equidigital number, since it uses as much as digits as its factorization.

1212023411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1212023411 is about 34814.1266011371. The cubic root of 1212023411 is about 1066.1958870517.

Adding to 1212023411 its reverse (1143202121), we get a palindrome (2355225532).

The spelling of 1212023411 in words is "one billion, two hundred twelve million, twenty-three thousand, four hundred eleven".