100121231132009 has 8 divisors (see below), whose sum is σ = 100696079581920. Its totient is φ = 99546555037600.

The previous prime is 100121231131973. The next prime is 100121231132099. The reversal of 100121231132009 is 900231132121001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100121231132009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100121231132099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41923652 + ... + 44247429.

It is an arithmetic number, because the mean of its divisors is an integer number (12587009947740).

Almost surely, 2^{100121231132009} is an apocalyptic number.

It is an amenable number.

100121231132009 is a deficient number, since it is larger than the sum of its proper divisors (574848449911).

100121231132009 is an equidigital number, since it uses as much as digits as its factorization.

100121231132009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86177751.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 100121231132009 in words is "one hundred trillion, one hundred twenty-one billion, two hundred thirty-one million, one hundred thirty-two thousand, nine".