20133131353 has 2 divisors, whose sum is σ = 20133131354. Its totient is φ = 20133131352.

The previous prime is 20133131281. The next prime is 20133131377. The reversal of 20133131353 is 35313133102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12182199129 + 7950932224 = 110373^2 + 89168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20133131353 is a prime.

It is a super-2 number, since 2×20133131353² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20133131383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066565676 + 10066565677.

It is an arithmetic number, because the mean of its divisors is an integer number (10066565677).

Almost surely, 2^20133131353 is an apocalyptic number.

It is an amenable number.

20133131353 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133131353 is an equidigital number, since it uses as much as digits as its factorization.

20133131353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 25.

Adding to 20133131353 its reverse (35313133102), we get a palindrome (55446264455).

The spelling of 20133131353 in words is "twenty billion, one hundred thirty-three million, one hundred thirty-one thousand, three hundred fifty-three".