122520352143 has 64 divisors (see below), whose sum is σ = 192851656704. Its totient is φ = 67748400000.

The previous prime is 122520352127. The next prime is 122520352181. The reversal of 122520352143 is 341253025221.

It is not a de Polignac number, because 122520352143 - 2⁴ = 122520352127 is a prime.

It is a super-2 number, since 2×122520352143² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122520352143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122520352103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26684778 + ... + 26689368.

It is an arithmetic number, because the mean of its divisors is an integer number (3013307136).

Almost surely, 2^122520352143 is an apocalyptic number.

122520352143 is a deficient number, since it is larger than the sum of its proper divisors (70331304561).

122520352143 is a wasteful number, since it uses less digits than its factorization.

122520352143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 122520352143 its reverse (341253025221), we get a palindrome (463773377364).

The spelling of 122520352143 in words is "one hundred twenty-two billion, five hundred twenty million, three hundred fifty-two thousand, one hundred forty-three".