100311203121133 has 4 divisors (see below), whose sum is σ = 103770210125340. Its totient is φ = 96852196116928.

The previous prime is 100311203121127. The next prime is 100311203121221. The reversal of 100311203121133 is 331121302113001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51373945023844 + 48937258097289 = 7167562^2 + 6995517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100311203121133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100311203121113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1729503502060 + ... + 1729503502117.

It is an arithmetic number, because the mean of its divisors is an integer number (25942552531335).

Almost surely, 2^{100311203121133} is an apocalyptic number.

It is an amenable number.

100311203121133 is a deficient number, since it is larger than the sum of its proper divisors (3459007004207).

100311203121133 is an equidigital number, since it uses as much as digits as its factorization.

100311203121133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459007004206.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 100311203121133 its reverse (331121302113001), we get a palindrome (431432505234134).

The spelling of 100311203121133 in words is "one hundred trillion, three hundred eleven billion, two hundred three million, one hundred twenty-one thousand, one hundred thirty-three".