20133302237 has 2 divisors, whose sum is σ = 20133302238. Its totient is φ = 20133302236.

The previous prime is 20133302213. The next prime is 20133302243. The reversal of 20133302237 is 73220333102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15518681476 + 4614620761 = 124574^2 + 67931^2 .

It is a cyclic number.

It is not a de Polignac number, because 20133302237 - 2²⁴ = 20116525021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20133302207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066651118 + 10066651119.

It is an arithmetic number, because the mean of its divisors is an integer number (10066651119).

Almost surely, 2^20133302237 is an apocalyptic number.

It is an amenable number.

20133302237 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133302237 is an equidigital number, since it uses as much as digits as its factorization.

20133302237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 26.

Adding to 20133302237 its reverse (73220333102), we get a palindrome (93353635339).

The spelling of 20133302237 in words is "twenty billion, one hundred thirty-three million, three hundred two thousand, two hundred thirty-seven".