20345032402443 has 48 divisors (see below), whose sum is σ = 35074935891360. Its totient is φ = 11621355282432.

The previous prime is 20345032402403. The next prime is 20345032402483. The reversal of 20345032402443 is 34420423054302.

20345032402443 is a `hidden beast` number, since 2 + 0 + 345 + 0 + 32 + 40 + 244 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (20345032402403) and next prime (20345032402483).

It is not a de Polignac number, because 20345032402443 - 2²⁶ = 20344965293579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20345032402398 and 20345032402407.

It is not an unprimeable number, because it can be changed into a prime (20345032402403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 621355 + ... + 6409067.

It is an arithmetic number, because the mean of its divisors is an integer number (730727831070).

Almost surely, 2^{20345032402443} is an apocalyptic number.

20345032402443 is a deficient number, since it is larger than the sum of its proper divisors (14729903488917).

20345032402443 is a wasteful number, since it uses less digits than its factorization.

20345032402443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5790393 (or 5790380 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 36.

Adding to 20345032402443 its reverse (34420423054302), we get a palindrome (54765455456745).

The spelling of 20345032402443 in words is "twenty trillion, three hundred forty-five billion, thirty-two million, four hundred two thousand, four hundred forty-three".