100032111521 has 2 divisors, whose sum is σ = 100032111522. Its totient is φ = 100032111520.

The previous prime is 100032111479. The next prime is 100032111523. The reversal of 100032111521 is 125111230001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64597813921 + 35434297600 = 254161^2 + 188240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100032111521 is a prime.

Together with 100032111523, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100032111521.

It is not a weakly prime, because it can be changed into another prime (100032111523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50016055760 + 50016055761.

It is an arithmetic number, because the mean of its divisors is an integer number (50016055761).

Almost surely, 2^100032111521 is an apocalyptic number.

It is an amenable number.

100032111521 is a deficient number, since it is larger than the sum of its proper divisors (1).

100032111521 is an equidigital number, since it uses as much as digits as its factorization.

100032111521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 100032111521 its reverse (125111230001), we get a palindrome (225143341522).

The spelling of 100032111521 in words is "one hundred billion, thirty-two million, one hundred eleven thousand, five hundred twenty-one".