20202344202431 has 16 divisors (see below), whose sum is σ = 20289028349280. Its totient is φ = 20115881210880.

The previous prime is 20202344202389. The next prime is 20202344202461. The reversal of 20202344202431 is 13420244320202.

It is a cyclic number.

It is not a de Polignac number, because 20202344202431 - 2³⁸ = 19927466295487 is a prime.

It is a super-2 number, since 2×20202344202431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202344202394 and 20202344202403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202344202461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601655315 + ... + 601688891.

It is an arithmetic number, because the mean of its divisors is an integer number (1268064271830).

Almost surely, 2^{20202344202431} is an apocalyptic number.

20202344202431 is a deficient number, since it is larger than the sum of its proper divisors (86684146849).

20202344202431 is a wasteful number, since it uses less digits than its factorization.

20202344202431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36794.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 20202344202431 its reverse (13420244320202), we get a palindrome (33622588522633).

The spelling of 20202344202431 in words is "twenty trillion, two hundred two billion, three hundred forty-four million, two hundred two thousand, four hundred thirty-one".