100332021997 has 2 divisors, whose sum is σ = 100332021998. Its totient is φ = 100332021996.

The previous prime is 100332021989. The next prime is 100332022039. The reversal of 100332021997 is 799120233001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91457251561 + 8874770436 = 302419^2 + 94206^2 .

It is a cyclic number.

It is not a de Polignac number, because 100332021997 - 2³ = 100332021989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100332021197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50166010998 + 50166010999.

It is an arithmetic number, because the mean of its divisors is an integer number (50166010999).

Almost surely, 2^100332021997 is an apocalyptic number.

It is an amenable number.

100332021997 is a deficient number, since it is larger than the sum of its proper divisors (1).

100332021997 is an equidigital number, since it uses as much as digits as its factorization.

100332021997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

Adding to 100332021997 its reverse (799120233001), we get a palindrome (899452254998).

The spelling of 100332021997 in words is "one hundred billion, three hundred thirty-two million, twenty-one thousand, nine hundred ninety-seven".