125523343242 has 36 divisors (see below), whose sum is σ = 298939206930. Its totient is φ = 38037376080.

The previous prime is 125523343229. The next prime is 125523343277. The reversal of 125523343242 is 242343325521.

125523343242 is a `hidden beast` number, since 1 + 2 + 55 + 23 + 343 + 242 = 666.

It can be written as a sum of positive squares in only one way, i.e., 125309628081 + 213715161 = 353991^2 + 14619^2 .

It is a super-2 number, since 2×125523343242² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125523343197 and 125523343206.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28814017 + ... + 28818372.

Almost surely, 2^125523343242 is an apocalyptic number.

125523343242 is an abundant number, since it is smaller than the sum of its proper divisors (173415863688).

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

125523343242 is a wasteful number, since it uses less digits than its factorization.

125523343242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57632419 (or 57632405 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

Adding to 125523343242 its reverse (242343325521), we get a palindrome (367866668763).

The spelling of 125523343242 in words is "one hundred twenty-five billion, five hundred twenty-three million, three hundred forty-three thousand, two hundred forty-two".