11215151873 has 2 divisors, whose sum is σ = 11215151874. Its totient is φ = 11215151872.

The previous prime is 11215151863. The next prime is 11215151911. The reversal of 11215151873 is 37815151211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10829107969 + 386043904 = 104063^2 + 19648^2 .

It is an emirp because it is prime and its reverse (37815151211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11215151873 - 2¹² = 11215147777 is a prime.

It is not a weakly prime, because it can be changed into another prime (11215151833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5607575936 + 5607575937.

It is an arithmetic number, because the mean of its divisors is an integer number (5607575937).

Almost surely, 2^11215151873 is an apocalyptic number.

It is an amenable number.

11215151873 is a deficient number, since it is larger than the sum of its proper divisors (1).

11215151873 is an equidigital number, since it uses as much as digits as its factorization.

11215151873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 35.

The spelling of 11215151873 in words is "eleven billion, two hundred fifteen million, one hundred fifty-one thousand, eight hundred seventy-three".