100032199578821 has 2 divisors, whose sum is σ = 100032199578822. Its totient is φ = 100032199578820.

The previous prime is 100032199578763. The next prime is 100032199578887. The reversal of 100032199578821 is 128875991230001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94227887481025 + 5804312097796 = 9707105^2 + 2409214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100032199578821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100032199572821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50016099789410 + 50016099789411.

It is an arithmetic number, because the mean of its divisors is an integer number (50016099789411).

Almost surely, 2^{100032199578821} is an apocalyptic number.

It is an amenable number.

100032199578821 is a deficient number, since it is larger than the sum of its proper divisors (1).

100032199578821 is an equidigital number, since it uses as much as digits as its factorization.

100032199578821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 56.

The spelling of 100032199578821 in words is "one hundred trillion, thirty-two billion, one hundred ninety-nine million, five hundred seventy-eight thousand, eight hundred twenty-one".