123420460135 has 16 divisors (see below), whose sum is σ = 169394953536. Its totient is φ = 84564868608.

The previous prime is 123420460123. The next prime is 123420460151. The reversal of 123420460135 is 531064024321.

It is a cyclic number.

It is not a de Polignac number, because 123420460135 - 2¹³ = 123420451943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123420460097 and 123420460106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1336002 + ... + 1425391.

It is an arithmetic number, because the mean of its divisors is an integer number (10587184596).

Almost surely, 2^123420460135 is an apocalyptic number.

123420460135 is a deficient number, since it is larger than the sum of its proper divisors (45974493401).

123420460135 is a wasteful number, since it uses less digits than its factorization.

123420460135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762682.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 123420460135 its reverse (531064024321), we get a palindrome (654484484456).

The spelling of 123420460135 in words is "one hundred twenty-three billion, four hundred twenty million, four hundred sixty thousand, one hundred thirty-five".