13240123242 has 16 divisors (see below), whose sum is σ = 26497316160. Its totient is φ = 4410529472.

The previous prime is 13240123199. The next prime is 13240123279. The reversal of 13240123242 is 24232104231.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701142 + ... + 719777.

It is an arithmetic number, because the mean of its divisors is an integer number (1656082260).

Almost surely, 2^13240123242 is an apocalyptic number.

13240123242 is an abundant number, since it is smaller than the sum of its proper divisors (13257192918).

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

13240123242 is a wasteful number, since it uses less digits than its factorization.

13240123242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422477.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 13240123242 its reverse (24232104231), we get a palindrome (37472227473).

The spelling of 13240123242 in words is "thirteen billion, two hundred forty million, one hundred twenty-three thousand, two hundred forty-two".