100000311220133 has 4 divisors (see below), whose sum is σ = 100000465160460. Its totient is φ = 100000157279808.

The previous prime is 100000311220129. The next prime is 100000311220153. The reversal of 100000311220133 is 331022113000001.

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 26584769105764 + 73415542114369 = 5156042^2 + 8568287^2 .

It is a cyclic number.

It is not a de Polignac number, because 100000311220133 - 2² = 100000311220129 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 (100000311220153) 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, 75991610 + ... + 77296347.

It is an arithmetic number, because the mean of its divisors is an integer number (25000116290115).

Almost surely, 2^{100000311220133} is an apocalyptic number.

It is an amenable number.

100000311220133 is a deficient number, since it is larger than the sum of its proper divisors (153940327).

100000311220133 is an equidigital number, since it uses as much as digits as its factorization.

100000311220133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153940326.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100000311220133 its reverse (331022113000001), we get a palindrome (431022424220134).

The spelling of 100000311220133 in words is "one hundred trillion, three hundred eleven million, two hundred twenty thousand, one hundred thirty-three".