124021040120421 has 16 divisors (see below), whose sum is σ = 166048336048320. Its totient is φ = 82337222119680.

The previous prime is 124021040120399. The next prime is 124021040120441.

It is a happy number.

124021040120421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 124021040120421 - 2⁹ = 124021040119909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124021040120391 and 124021040120400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124021040120441) 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, 288304731 + ... + 288734583.

It is an arithmetic number, because the mean of its divisors is an integer number (10378021003020).

Almost surely, 2^{124021040120421} is an apocalyptic number.

It is an amenable number.

124021040120421 is a deficient number, since it is larger than the sum of its proper divisors (42027295927899).

124021040120421 is a wasteful number, since it uses less digits than its factorization.

124021040120421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829156.

The product of its (nonzero) digits is 1024, while the sum is 24.

The spelling of 124021040120421 in words is "one hundred twenty-four trillion, twenty-one billion, forty million, one hundred twenty thousand, four hundred twenty-one".