124123431013 has 4 divisors (see below), whose sum is σ = 124200099360. Its totient is φ = 124046762668.

The previous prime is 124123431007. The next prime is 124123431067. The reversal of 124123431013 is 310134321421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310134321421 = 113 ⋅2744551517.

It is a cyclic number.

It is not a de Polignac number, because 124123431013 - 2¹⁷ = 124123299941 is a prime.

It is a super-2 number, since 2×124123431013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124123401013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38331745 + ... + 38334982.

It is an arithmetic number, because the mean of its divisors is an integer number (31050024840).

Almost surely, 2^124123431013 is an apocalyptic number.

It is an amenable number.

124123431013 is a deficient number, since it is larger than the sum of its proper divisors (76668347).

124123431013 is an equidigital number, since it uses as much as digits as its factorization.

124123431013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76668346.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 124123431013 its reverse (310134321421), we get a palindrome (434257752434).

The spelling of 124123431013 in words is "one hundred twenty-four billion, one hundred twenty-three million, four hundred thirty-one thousand, thirteen".