11851187723 has 2 divisors, whose sum is σ = 11851187724. Its totient is φ = 11851187722.

The previous prime is 11851187629. The next prime is 11851187729. The reversal of 11851187723 is 32778115811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11851187723 - 2¹² = 11851183627 is a prime.

It is not a weakly prime, because it can be changed into another prime (11851187729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5925593861 + 5925593862.

It is an arithmetic number, because the mean of its divisors is an integer number (5925593862).

Almost surely, 2^11851187723 is an apocalyptic number.

11851187723 is a deficient number, since it is larger than the sum of its proper divisors (1).

11851187723 is an equidigital number, since it uses as much as digits as its factorization.

11851187723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 44.

The spelling of 11851187723 in words is "eleven billion, eight hundred fifty-one million, one hundred eighty-seven thousand, seven hundred twenty-three".