20333100413 has 2 divisors, whose sum is σ = 20333100414. Its totient is φ = 20333100412.

The previous prime is 20333100391. The next prime is 20333100433. The reversal of 20333100413 is 31400133302.

It is an a-pointer prime, because the next prime (20333100433) can be obtained adding 20333100413 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19120528729 + 1212571684 = 138277^2 + 34822^2 .

It is a cyclic number.

It is not a de Polignac number, because 20333100413 - 2⁸ = 20333100157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20333100433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166550206 + 10166550207.

It is an arithmetic number, because the mean of its divisors is an integer number (10166550207).

Almost surely, 2^20333100413 is an apocalyptic number.

It is an amenable number.

20333100413 is a deficient number, since it is larger than the sum of its proper divisors (1).

20333100413 is an equidigital number, since it uses as much as digits as its factorization.

20333100413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20333100413 its reverse (31400133302), we get a palindrome (51733233715).

The spelling of 20333100413 in words is "twenty billion, three hundred thirty-three million, one hundred thousand, four hundred thirteen".