20435141533231 has 2 divisors, whose sum is σ = 20435141533232. Its totient is φ = 20435141533230.

The previous prime is 20435141533211. The next prime is 20435141533243. The reversal of 20435141533231 is 13233514153402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20435141533231 - 2²⁵ = 20435107978799 is a prime.

It is a super-2 number, since 2×20435141533231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20435141533211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10217570766615 + 10217570766616.

It is an arithmetic number, because the mean of its divisors is an integer number (10217570766616).

Almost surely, 2^{20435141533231} is an apocalyptic number.

20435141533231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20435141533231 is an equidigital number, since it uses as much as digits as its factorization.

20435141533231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 20435141533231 its reverse (13233514153402), we get a palindrome (33668655686633).

The spelling of 20435141533231 in words is "twenty trillion, four hundred thirty-five billion, one hundred forty-one million, five hundred thirty-three thousand, two hundred thirty-one".