20131102303133 has 2 divisors, whose sum is σ = 20131102303134. Its totient is φ = 20131102303132.

The previous prime is 20131102303111. The next prime is 20131102303139. The reversal of 20131102303133 is 33130320113102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19870893151684 + 260209151449 = 4457678^2 + 510107^2 .

It is a cyclic number.

It is not a de Polignac number, because 20131102303133 - 2⁶ = 20131102303069 is a prime.

It is a super-2 number, since 2×20131102303133² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20131102303099 and 20131102303108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20131102303139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065551151566 + 10065551151567.

It is an arithmetic number, because the mean of its divisors is an integer number (10065551151567).

Almost surely, 2^{20131102303133} is an apocalyptic number.

It is an amenable number.

20131102303133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20131102303133 is an equidigital number, since it uses as much as digits as its factorization.

20131102303133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 20131102303133 its reverse (33130320113102), we get a palindrome (53261422416235).

The spelling of 20131102303133 in words is "twenty trillion, one hundred thirty-one billion, one hundred two million, three hundred three thousand, one hundred thirty-three".