20133388358231 has 2 divisors, whose sum is σ = 20133388358232. Its totient is φ = 20133388358230.

The previous prime is 20133388358203. The next prime is 20133388358249. The reversal of 20133388358231 is 13285388333102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20133388358231 - 2¹⁰ = 20133388357207 is a prime.

It is a super-2 number, since 2×20133388358231² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20133388358231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20133388358201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066694179115 + 10066694179116.

It is an arithmetic number, because the mean of its divisors is an integer number (10066694179116).

Almost surely, 2^{20133388358231} is an apocalyptic number.

20133388358231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133388358231 is an equidigital number, since it uses as much as digits as its factorization.

20133388358231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 20133388358231 in words is "twenty trillion, one hundred thirty-three billion, three hundred eighty-eight million, three hundred fifty-eight thousand, two hundred thirty-one".