100032261621 has 4 divisors (see below), whose sum is σ = 133376348832. Its totient is φ = 66688174412.

The previous prime is 100032261559. The next prime is 100032261661. The reversal of 100032261621 is 126162230001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100032261621 - 2¹⁸ = 100031999477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100032261591 and 100032261600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100032261661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16672043601 + ... + 16672043606.

It is an arithmetic number, because the mean of its divisors is an integer number (33344087208).

Almost surely, 2^100032261621 is an apocalyptic number.

It is an amenable number.

100032261621 is a deficient number, since it is larger than the sum of its proper divisors (33344087211).

100032261621 is an equidigital number, since it uses as much as digits as its factorization.

100032261621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33344087210.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 100032261621 its reverse (126162230001), we get a palindrome (226194491622).

The spelling of 100032261621 in words is "one hundred billion, thirty-two million, two hundred sixty-one thousand, six hundred twenty-one".