100432421329 has 2 divisors, whose sum is σ = 100432421330. Its totient is φ = 100432421328.

The previous prime is 100432421293. The next prime is 100432421333. The reversal of 100432421329 is 923124234001.

Together with previous prime (100432421293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83810250000 + 16622171329 = 289500^2 + 128927^2 .

It is a cyclic number.

It is not a de Polignac number, because 100432421329 - 2¹¹ = 100432419281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100432421329.

It is not a weakly prime, because it can be changed into another prime (100432421389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50216210664 + 50216210665.

It is an arithmetic number, because the mean of its divisors is an integer number (50216210665).

Almost surely, 2^100432421329 is an apocalyptic number.

It is an amenable number.

100432421329 is a deficient number, since it is larger than the sum of its proper divisors (1).

100432421329 is an equidigital number, since it uses as much as digits as its factorization.

100432421329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 100432421329 in words is "one hundred billion, four hundred thirty-two million, four hundred twenty-one thousand, three hundred twenty-nine".