124121130431 has 4 divisors (see below), whose sum is σ = 127007668392. Its totient is φ = 121234592472.

The previous prime is 124121130377. The next prime is 124121130443. The reversal of 124121130431 is 134031121421.

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 124121130431 - 2²² = 124116936127 is a prime.

It is a super-2 number, since 2×124121130431² (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 = 124121130397 and 124121130406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124121132431) 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, 1443268916 + ... + 1443269001.

It is an arithmetic number, because the mean of its divisors is an integer number (31751917098).

Almost surely, 2^124121130431 is an apocalyptic number.

124121130431 is a deficient number, since it is larger than the sum of its proper divisors (2886537961).

124121130431 is an equidigital number, since it uses as much as digits as its factorization.

124121130431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886537960.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 124121130431 its reverse (134031121421), we get a palindrome (258152251852).

The spelling of 124121130431 in words is "one hundred twenty-four billion, one hundred twenty-one million, one hundred thirty thousand, four hundred thirty-one".