122520343 has 16 divisors (see below), whose sum is σ = 142490880. Its totient is φ = 104112000.

The previous prime is 122520301. The next prime is 122520347. The reversal of 122520343 is 343025221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122520343 is a prime.

It is a super-2 number, since 2×122520343² = 30022468897675298, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122520347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26068 + ... + 30406.

It is an arithmetic number, because the mean of its divisors is an integer number (8905680).

Almost surely, 2^122520343 is an apocalyptic number.

122520343 is a deficient number, since it is larger than the sum of its proper divisors (19970537).

122520343 is a wasteful number, since it uses less digits than its factorization.

122520343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4518.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 122520343 is about 11068.8907755023. The cubic root of 122520343 is about 496.6716844580.

Adding to 122520343 its reverse (343025221), we get a palindrome (465545564).

The spelling of 122520343 in words is "one hundred twenty-two million, five hundred twenty thousand, three hundred forty-three".