124320242204131 has 4 divisors (see below), whose sum is σ = 125717098858200. Its totient is φ = 122923385550064.

The previous prime is 124320242204089. The next prime is 124320242204153. The reversal of 124320242204131 is 131402242023421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124320242204131 is a prime.

It is a super-2 number, since 2×124320242204131² (a number of 29 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 = 124320242204093 and 124320242204102.

It is not an unprimeable number, because it can be changed into a prime (124320242204161) 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, 698428326901 + ... + 698428327078.

It is an arithmetic number, because the mean of its divisors is an integer number (31429274714550).

Almost surely, 2^{124320242204131} is an apocalyptic number.

124320242204131 is a deficient number, since it is larger than the sum of its proper divisors (1396856654069).

124320242204131 is an equidigital number, since it uses as much as digits as its factorization.

124320242204131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396856654068.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 124320242204131 its reverse (131402242023421), we get a palindrome (255722484227552).

The spelling of 124320242204131 in words is "one hundred twenty-four trillion, three hundred twenty billion, two hundred forty-two million, two hundred four thousand, one hundred thirty-one".