20133425077 has 2 divisors, whose sum is σ = 20133425078. Its totient is φ = 20133425076.

The previous prime is 20133425033. The next prime is 20133425119. The reversal of 20133425077 is 77052433102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12536385156 + 7597039921 = 111966^2 + 87161^2 .

It is a cyclic number.

It is not a de Polignac number, because 20133425077 - 2²³ = 20125036469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20133425177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066712538 + 10066712539.

It is an arithmetic number, because the mean of its divisors is an integer number (10066712539).

Almost surely, 2^20133425077 is an apocalyptic number.

It is an amenable number.

20133425077 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133425077 is an equidigital number, since it uses as much as digits as its factorization.

20133425077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 34.

Adding to 20133425077 its reverse (77052433102), we get a palindrome (97185858179).

The spelling of 20133425077 in words is "twenty billion, one hundred thirty-three million, four hundred twenty-five thousand, seventy-seven".