100213331 has 2 divisors, whose sum is σ = 100213332. Its totient is φ = 100213330.

The previous prime is 100213313. The next prime is 100213363. The reversal of 100213331 is 133312001.

Together with previous prime (100213313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100213331 is a prime.

It is a super-2 number, since 2×100213331² = 20085423420231122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100213031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50106665 + 50106666.

It is an arithmetic number, because the mean of its divisors is an integer number (50106666).

Almost surely, 2^100213331 is an apocalyptic number.

100213331 is a deficient number, since it is larger than the sum of its proper divisors (1).

100213331 is an equidigital number, since it uses as much as digits as its factorization.

100213331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 100213331 is about 10010.6608672954. The cubic root of 100213331 is about 464.4887138579.

Adding to 100213331 its reverse (133312001), we get a palindrome (233525332).

The spelling of 100213331 in words is "one hundred million, two hundred thirteen thousand, three hundred thirty-one".