20533122007 has 2 divisors, whose sum is σ = 20533122008. Its totient is φ = 20533122006.

The previous prime is 20533121953. The next prime is 20533122013. The reversal of 20533122007 is 70022133502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20533122007 - 2⁷ = 20533121879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20533122067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10266561003 + 10266561004.

It is an arithmetic number, because the mean of its divisors is an integer number (10266561004).

Almost surely, 2^20533122007 is an apocalyptic number.

20533122007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20533122007 is an equidigital number, since it uses as much as digits as its factorization.

20533122007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

Adding to 20533122007 its reverse (70022133502), we get a palindrome (90555255509).

The spelling of 20533122007 in words is "twenty billion, five hundred thirty-three million, one hundred twenty-two thousand, seven".