20100232213 has 2 divisors, whose sum is σ = 20100232214. Its totient is φ = 20100232212.

The previous prime is 20100232199. The next prime is 20100232241. The reversal of 20100232213 is 31223200102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19116657169 + 983575044 = 138263^2 + 31362^2 .

It is a cyclic number.

It is not a de Polignac number, because 20100232213 - 2⁵ = 20100232181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20100232283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050116106 + 10050116107.

It is an arithmetic number, because the mean of its divisors is an integer number (10050116107).

Almost surely, 2^20100232213 is an apocalyptic number.

It is an amenable number.

20100232213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100232213 is an equidigital number, since it uses as much as digits as its factorization.

20100232213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20100232213 its reverse (31223200102), we get a palindrome (51323432315).

The spelling of 20100232213 in words is "twenty billion, one hundred million, two hundred thirty-two thousand, two hundred thirteen".