100432331221 has 8 divisors (see below), whose sum is σ = 101657513664. Its totient is φ = 99207509760.

The previous prime is 100432331203. The next prime is 100432331239. The reversal of 100432331221 is 122133234001.

It is an interprime number because it is at equal distance from previous prime (100432331203) and next prime (100432331239).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100432331221 - 2⁹ = 100432330709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100432331192 and 100432331201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100432337221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492376 + ... + 665806.

It is an arithmetic number, because the mean of its divisors is an integer number (12707189208).

Almost surely, 2^100432331221 is an apocalyptic number.

It is an amenable number.

100432331221 is a deficient number, since it is larger than the sum of its proper divisors (1225182443).

100432331221 is an equidigital number, since it uses as much as digits as its factorization.

100432331221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180491.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 100432331221 its reverse (122133234001), we get a palindrome (222565565222).

The spelling of 100432331221 in words is "one hundred billion, four hundred thirty-two million, three hundred thirty-one thousand, two hundred twenty-one".