124243040342421 has 72 divisors (see below), whose sum is σ = 242781625399040. Its totient is φ = 59577082234560.

The previous prime is 124243040342299. The next prime is 124243040342437.

124243040342421 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 4 + 3 + 0 + 403 + 4 + 242 + 1 = 666.

124243040342421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 124243040342421 - 2¹⁴ = 124243040326037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124243040342621) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 626764141 + ... + 626962338.

Almost surely, 2^{124243040342421} is an apocalyptic number.

124243040342421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124243040342421 is a deficient number, since it is larger than the sum of its proper divisors (118538585056619).

124243040342421 is a wasteful number, since it uses less digits than its factorization.

124243040342421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253726527 (or 1253726513 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

The spelling of 124243040342421 in words is "one hundred twenty-four trillion, two hundred forty-three billion, forty million, three hundred forty-two thousand, four hundred twenty-one".