124333120021 has 16 divisors (see below), whose sum is σ = 141585965568. Its totient is φ = 108075567600.

The previous prime is 124333119991. The next prime is 124333120027. The reversal of 124333120021 is 120021333421.

It is not a de Polignac number, because 124333120021 - 2¹⁹ = 124332595733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124333119974 and 124333120001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124333120027) 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, 600970 + ... + 780916.

It is an arithmetic number, because the mean of its divisors is an integer number (8849122848).

Almost surely, 2^124333120021 is an apocalyptic number.

124333120021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124333120021 is a deficient number, since it is larger than the sum of its proper divisors (17252845547).

124333120021 is a wasteful number, since it uses less digits than its factorization.

124333120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182712.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 124333120021 its reverse (120021333421), we get a palindrome (244354453442).

The spelling of 124333120021 in words is "one hundred twenty-four billion, three hundred thirty-three million, one hundred twenty thousand, twenty-one".