124242440115 has 16 divisors (see below), whose sum is σ = 199495341216. Its totient is φ = 66026822400.

The previous prime is 124242440111. The next prime is 124242440137. The reversal of 124242440115 is 511044242421.

It is not a de Polignac number, because 124242440115 - 2² = 124242440111 is a prime.

It is a super-2 number, since 2×124242440115² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (124242440111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14733916 + ... + 14742345.

It is an arithmetic number, because the mean of its divisors is an integer number (12468458826).

Almost surely, 2^124242440115 is an apocalyptic number.

124242440115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

124242440115 is a deficient number, since it is larger than the sum of its proper divisors (75252901101).

124242440115 is a wasteful number, since it uses less digits than its factorization.

124242440115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29476550.

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 124242440115 its reverse (511044242421), we get a palindrome (635286682536).

The spelling of 124242440115 in words is "one hundred twenty-four billion, two hundred forty-two million, four hundred forty thousand, one hundred fifteen".