11955870323 has 2 divisors, whose sum is σ = 11955870324. Its totient is φ = 11955870322.

The previous prime is 11955870319. The next prime is 11955870337. The reversal of 11955870323 is 32307855911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11955870323 - 2² = 11955870319 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11955870623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5977935161 + 5977935162.

It is an arithmetic number, because the mean of its divisors is an integer number (5977935162).

Almost surely, 2^11955870323 is an apocalyptic number.

11955870323 is a deficient number, since it is larger than the sum of its proper divisors (1).

11955870323 is an equidigital number, since it uses as much as digits as its factorization.

11955870323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 11955870323 in words is "eleven billion, nine hundred fifty-five million, eight hundred seventy thousand, three hundred twenty-three".