123542452235 has 4 divisors (see below), whose sum is σ = 148250942688. Its totient is φ = 98833961784.

The previous prime is 123542452217. The next prime is 123542452273. The reversal of 123542452235 is 532254245321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 532254245321 = 23 ⋅23141488927.

It is a cyclic number.

It is not a de Polignac number, because 123542452235 - 2²⁶ = 123475343371 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12354245219 + ... + 12354245228.

It is an arithmetic number, because the mean of its divisors is an integer number (37062735672).

Almost surely, 2^123542452235 is an apocalyptic number.

123542452235 is a deficient number, since it is larger than the sum of its proper divisors (24708490453).

123542452235 is an equidigital number, since it uses as much as digits as its factorization.

123542452235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24708490452.

The product of its digits is 288000, while the sum is 38.

Adding to 123542452235 its reverse (532254245321), we get a palindrome (655796697556).

The spelling of 123542452235 in words is "one hundred twenty-three billion, five hundred forty-two million, four hundred fifty-two thousand, two hundred thirty-five".