20133113057 has 2 divisors, whose sum is σ = 20133113058. Its totient is φ = 20133113056.

The previous prime is 20133113027. The next prime is 20133113059. The reversal of 20133113057 is 75031133102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20083424656 + 49688401 = 141716^2 + 7049^2 .

It is a cyclic number.

It is not a de Polignac number, because 20133113057 - 2²² = 20128918753 is a prime.

Together with 20133113059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20133113059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066556528 + 10066556529.

It is an arithmetic number, because the mean of its divisors is an integer number (10066556529).

Almost surely, 2^20133113057 is an apocalyptic number.

It is an amenable number.

20133113057 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133113057 is an equidigital number, since it uses as much as digits as its factorization.

20133113057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 26.

Adding to 20133113057 its reverse (75031133102), we get a palindrome (95164246159).

The spelling of 20133113057 in words is "twenty billion, one hundred thirty-three million, one hundred thirteen thousand, fifty-seven".