12345342142 has 12 divisors (see below), whose sum is σ = 21541362480. Its totient is φ = 5290860876.

The previous prime is 12345342127. The next prime is 12345342179. The reversal of 12345342142 is 24124354321.

It is a super-2 number, since 2×12345342142² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62986342 + ... + 62986537.

It is an arithmetic number, because the mean of its divisors is an integer number (1795113540).

Almost surely, 2^12345342142 is an apocalyptic number.

12345342142 is a deficient number, since it is larger than the sum of its proper divisors (9196020338).

12345342142 is a wasteful number, since it uses less digits than its factorization.

12345342142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125972895 (or 125972888 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

Adding to 12345342142 its reverse (24124354321), we get a palindrome (36469696463).

The spelling of 12345342142 in words is "twelve billion, three hundred forty-five million, three hundred forty-two thousand, one hundred forty-two".