13423240142 has 16 divisors (see below), whose sum is σ = 21849225552. Its totient is φ = 6148047360.

The previous prime is 13423240139. The next prime is 13423240153. The reversal of 13423240142 is 24104232431.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent 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, 1967123 + ... + 1973934.

It is an arithmetic number, because the mean of its divisors is an integer number (1365576597).

Almost surely, 2^13423240142 is an apocalyptic number.

13423240142 is a deficient number, since it is larger than the sum of its proper divisors (8425985410).

13423240142 is a wasteful number, since it uses less digits than its factorization.

13423240142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3941203.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 13423240142 its reverse (24104232431), we get a palindrome (37527472573).

The spelling of 13423240142 in words is "thirteen billion, four hundred twenty-three million, two hundred forty thousand, one hundred forty-two".