124020453829 has 8 divisors (see below), whose sum is σ = 124133454072. Its totient is φ = 123907496640.

The previous prime is 124020453779. The next prime is 124020453913. The reversal of 124020453829 is 928354020421.

It can be written as a sum of positive squares in 4 ways, for example, as 62068248225 + 61952205604 = 249135^2 + 248902^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124020453829 is a prime.

It is a super-2 number, since 2×124020453829² (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 = 124020453791 and 124020453800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124020453229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8743387 + ... + 8757559.

It is an arithmetic number, because the mean of its divisors is an integer number (15516681759).

Almost surely, 2^124020453829 is an apocalyptic number.

It is an amenable number.

124020453829 is a deficient number, since it is larger than the sum of its proper divisors (113000243).

124020453829 is a wasteful number, since it uses less digits than its factorization.

124020453829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21527.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 124020453829 in words is "one hundred twenty-four billion, twenty million, four hundred fifty-three thousand, eight hundred twenty-nine".