124121039999 has 48 divisors (see below), whose sum is σ = 148903544160. Its totient is φ = 102962534400.

The previous prime is 124121039963. The next prime is 124121040013. The reversal of 124121039999 is 999930121421.

It is not a de Polignac number, because 124121039999 - 2¹⁶ = 124120974463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124121039929) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13742417 + ... + 13751445.

It is an arithmetic number, because the mean of its divisors is an integer number (3102157170).

Almost surely, 2^124121039999 is an apocalyptic number.

124121039999 is a deficient number, since it is larger than the sum of its proper divisors (24782504161).

124121039999 is a wasteful number, since it uses less digits than its factorization.

124121039999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9272 (or 9261 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 50.

The spelling of 124121039999 in words is "one hundred twenty-four billion, one hundred twenty-one million, thirty-nine thousand, nine hundred ninety-nine".