100132121 has 2 divisors, whose sum is σ = 100132122. Its totient is φ = 100132120.

The previous prime is 100132117. The next prime is 100132141. The reversal of 100132121 is 121231001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64000000 + 36132121 = 8000^2 + 6011^2 .

It is a cyclic number.

It is not a de Polignac number, because 100132121 - 2² = 100132117 is a prime.

It is not a weakly prime, because it can be changed into another prime (100132111) 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, 50066060 + 50066061.

It is an arithmetic number, because the mean of its divisors is an integer number (50066061).

Almost surely, 2^100132121 is an apocalyptic number.

It is an amenable number.

100132121 is a deficient number, since it is larger than the sum of its proper divisors (1).

100132121 is an equidigital number, since it uses as much as digits as its factorization.

100132121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 100132121 is about 10006.6038694454. The cubic root of 100132121 is about 464.3632105207.

Adding to 100132121 its reverse (121231001), we get a palindrome (221363122).

The spelling of 100132121 in words is "one hundred million, one hundred thirty-two thousand, one hundred twenty-one".