100421112529 has 2 divisors, whose sum is σ = 100421112530. Its totient is φ = 100421112528.

The previous prime is 100421112481. The next prime is 100421112553. The reversal of 100421112529 is 925211124001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87348620304 + 13072492225 = 295548^2 + 114335^2 .

It is an emirp because it is prime and its reverse (925211124001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100421112529 - 2¹¹ = 100421110481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100421112497 and 100421112506.

It is not a weakly prime, because it can be changed into another prime (100421112929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50210556264 + 50210556265.

It is an arithmetic number, because the mean of its divisors is an integer number (50210556265).

Almost surely, 2^100421112529 is an apocalyptic number.

It is an amenable number.

100421112529 is a deficient number, since it is larger than the sum of its proper divisors (1).

100421112529 is an equidigital number, since it uses as much as digits as its factorization.

100421112529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 100421112529 in words is "one hundred billion, four hundred twenty-one million, one hundred twelve thousand, five hundred twenty-nine".