124142400131 has 4 divisors (see below), whose sum is σ = 124336070664. Its totient is φ = 123948729600.

The previous prime is 124142400121. The next prime is 124142400133. The reversal of 124142400131 is 131004241421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124142400131 - 2²⁶ = 124075291267 is a prime.

It is a super-2 number, since 2×124142400131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124142400097 and 124142400106.

It is not an unprimeable number, because it can be changed into a prime (124142400133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96834305 + ... + 96835586.

It is an arithmetic number, because the mean of its divisors is an integer number (31084017666).

Almost surely, 2^124142400131 is an apocalyptic number.

124142400131 is a deficient number, since it is larger than the sum of its proper divisors (193670533).

124142400131 is an equidigital number, since it uses as much as digits as its factorization.

124142400131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193670532.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 124142400131 its reverse (131004241421), we get a palindrome (255146641552).

The spelling of 124142400131 in words is "one hundred twenty-four billion, one hundred forty-two million, four hundred thousand, one hundred thirty-one".