100424123549 has 2 divisors, whose sum is σ = 100424123550. Its totient is φ = 100424123548.

The previous prime is 100424123431. The next prime is 100424123561. The reversal of 100424123549 is 945321424001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99001476025 + 1422647524 = 314645^2 + 37718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100424123549 is a prime.

It is a super-3 number, since 3×100424123549³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100424129549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50212061774 + 50212061775.

It is an arithmetic number, because the mean of its divisors is an integer number (50212061775).

Almost surely, 2^100424123549 is an apocalyptic number.

It is an amenable number.

100424123549 is a deficient number, since it is larger than the sum of its proper divisors (1).

100424123549 is an equidigital number, since it uses as much as digits as its factorization.

100424123549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 100424123549 in words is "one hundred billion, four hundred twenty-four million, one hundred twenty-three thousand, five hundred forty-nine".