20353432413631 has 2 divisors, whose sum is σ = 20353432413632. Its totient is φ = 20353432413630.

The previous prime is 20353432413527. The next prime is 20353432413647. The reversal of 20353432413631 is 13631423435302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20353432413631 - 2¹⁷ = 20353432282559 is a prime.

It is a super-2 number, since 2×20353432413631² (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 (20353432413031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10176716206815 + 10176716206816.

It is an arithmetic number, because the mean of its divisors is an integer number (10176716206816).

Almost surely, 2^{20353432413631} is an apocalyptic number.

20353432413631 is a deficient number, since it is larger than the sum of its proper divisors (1).

20353432413631 is an equidigital number, since it uses as much as digits as its factorization.

20353432413631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 40.

Adding to 20353432413631 its reverse (13631423435302), we get a palindrome (33984855848933).

The spelling of 20353432413631 in words is "twenty trillion, three hundred fifty-three billion, four hundred thirty-two million, four hundred thirteen thousand, six hundred thirty-one".