102311982 has 24 divisors (see below), whose sum is σ = 224715504. Its totient is φ = 33636384.

The previous prime is 102311969. The next prime is 102311983. The reversal of 102311982 is 289113201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102311983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37618 + ... + 40245.

It is an arithmetic number, because the mean of its divisors is an integer number (9363146).

Almost surely, 2^102311982 is an apocalyptic number.

102311982 is an abundant number, since it is smaller than the sum of its proper divisors (122403522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102311982 is a wasteful number, since it uses less digits than its factorization.

102311982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77944 (or 77941 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 102311982 is about 10114.9385564125. The cubic root of 102311982 is about 467.7087547972.

It can be divided in two parts, 1023119 and 82, that added together give a palindrome (1023201).

The spelling of 102311982 in words is "one hundred two million, three hundred eleven thousand, nine hundred eighty-two".