11323409987 has 2 divisors, whose sum is σ = 11323409988. Its totient is φ = 11323409986.

The previous prime is 11323409953. The next prime is 11323410011. The reversal of 11323409987 is 78990432311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11323409987 - 2⁸ = 11323409731 is a prime.

It is a super-2 number, since 2×11323409987² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11323409087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5661704993 + 5661704994.

It is an arithmetic number, because the mean of its divisors is an integer number (5661704994).

Almost surely, 2^11323409987 is an apocalyptic number.

11323409987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11323409987 is an equidigital number, since it uses as much as digits as its factorization.

11323409987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 11323409987 in words is "eleven billion, three hundred twenty-three million, four hundred nine thousand, nine hundred eighty-seven".