102111340 has 24 divisors (see below), whose sum is σ = 215458992. Its totient is φ = 40649280.

The previous prime is 102111319. The next prime is 102111389. The reversal of 102111340 is 43111201.

It is a self number, because there is not a number n which added to its sum of digits gives 102111340.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7879 + ... + 16318.

It is an arithmetic number, because the mean of its divisors is an integer number (8977458).

Almost surely, 2^102111340 is an apocalyptic number.

102111340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111340 is an abundant number, since it is smaller than the sum of its proper divisors (113347652).

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

102111340 is a wasteful number, since it uses less digits than its factorization.

102111340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24417 (or 24415 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 102111340 is about 10105.0155863314. The cubic root of 102111340 is about 467.4028165973.

Adding to 102111340 its reverse (43111201), we get a palindrome (145222541).

The spelling of 102111340 in words is "one hundred two million, one hundred eleven thousand, three hundred forty".