11872661051 has 2 divisors, whose sum is σ = 11872661052. Its totient is φ = 11872661050.

The previous prime is 11872661033. The next prime is 11872661123. The reversal of 11872661051 is 15016627811.

It is a weak prime.

It is an emirp because it is prime and its reverse (15016627811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11872661051 - 2¹⁸ = 11872398907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11872660996 and 11872661014.

It is not a weakly prime, because it can be changed into another prime (11872661011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5936330525 + 5936330526.

It is an arithmetic number, because the mean of its divisors is an integer number (5936330526).

Almost surely, 2^11872661051 is an apocalyptic number.

11872661051 is a deficient number, since it is larger than the sum of its proper divisors (1).

11872661051 is an equidigital number, since it uses as much as digits as its factorization.

11872661051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 11872661051 in words is "eleven billion, eight hundred seventy-two million, six hundred sixty-one thousand, fifty-one".