102311311 has 2 divisors, whose sum is σ = 102311312. Its totient is φ = 102311310.

The previous prime is 102311309. The next prime is 102311317. The reversal of 102311311 is 113113201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102311311 - 2¹ = 102311309 is a prime.

Together with 102311309, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 102311291 and 102311300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102311317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51155655 + 51155656.

It is an arithmetic number, because the mean of its divisors is an integer number (51155656).

Almost surely, 2^102311311 is an apocalyptic number.

102311311 is a deficient number, since it is larger than the sum of its proper divisors (1).

102311311 is an equidigital number, since it uses as much as digits as its factorization.

102311311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 102311311 is about 10114.9053875951. The cubic root of 102311311 is about 467.7077323257.

Adding to 102311311 its reverse (113113201), we get a palindrome (215424512).

The spelling of 102311311 in words is "one hundred two million, three hundred eleven thousand, three hundred eleven".