102520343 has 4 divisors (see below), whose sum is σ = 102560640. Its totient is φ = 102480048.

The previous prime is 102520337. The next prime is 102520403. The reversal of 102520343 is 343025201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102520343 - 2⁸ = 102520087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102580343) 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 in 3 ways as a sum of consecutive naturals, for example, 16055 + ... + 21512.

It is an arithmetic number, because the mean of its divisors is an integer number (25640160).

Almost surely, 2^102520343 is an apocalyptic number.

102520343 is a deficient number, since it is larger than the sum of its proper divisors (40297).

102520343 is an equidigital number, since it uses as much as digits as its factorization.

102520343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40296.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 102520343 is about 10125.2329849737. The cubic root of 102520343 is about 468.0260398373.

Adding to 102520343 its reverse (343025201), we get a palindrome (445545544).

The spelling of 102520343 in words is "one hundred two million, five hundred twenty thousand, three hundred forty-three".