124143242542 has 16 divisors (see below), whose sum is σ = 207465691392. Its totient is φ = 55228134520.

The previous prime is 124143242513. The next prime is 124143242551. The reversal of 124143242542 is 245242341421.

It is a junction number, because it is equal to n+sod(n) for n = 124143242498 and 124143242507.

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, 60029548 + ... + 60031615.

It is an arithmetic number, because the mean of its divisors is an integer number (12966605712).

Almost surely, 2^124143242542 is an apocalyptic number.

124143242542 is a deficient number, since it is larger than the sum of its proper divisors (83322448850).

124143242542 is a wasteful number, since it uses less digits than its factorization.

124143242542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120061223.

The product of its digits is 61440, while the sum is 34.

Adding to 124143242542 its reverse (245242341421), we get a palindrome (369385583963).

The spelling of 124143242542 in words is "one hundred twenty-four billion, one hundred forty-three million, two hundred forty-two thousand, five hundred forty-two".