923941781311 has 2 divisors, whose sum is σ = 923941781312. Its totient is φ = 923941781310.

The previous prime is 923941781309. The next prime is 923941781341. The reversal of 923941781311 is 113187149329.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 923941781311 - 2¹ = 923941781309 is a prime.

Together with 923941781309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (923941781341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461970890655 + 461970890656.

It is an arithmetic number, because the mean of its divisors is an integer number (461970890656).

Almost surely, 2^923941781311 is an apocalyptic number.

923941781311 is a deficient number, since it is larger than the sum of its proper divisors (1).

923941781311 is an equidigital number, since it uses as much as digits as its factorization.

923941781311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 49.

The spelling of 923941781311 in words is "nine hundred twenty-three billion, nine hundred forty-one million, seven hundred eighty-one thousand, three hundred eleven".