20352400344042 has 32 divisors (see below), whose sum is σ = 43841032522560. Its totient is φ = 6261549411840.

The previous prime is 20352400344041. The next prime is 20352400344103. The reversal of 20352400344042 is 24044300425302.

It is a junction number, because it is equal to n+sod(n) for n = 20352400343994 and 20352400344012.

It is not an unprimeable number, because it can be changed into a prime (20352400344041) 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, 14482884 + ... + 15825887.

It is an arithmetic number, because the mean of its divisors is an integer number (1370032266330).

Almost surely, 2^{20352400344042} is an apocalyptic number.

20352400344042 is an abundant number, since it is smaller than the sum of its proper divisors (23488632178518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20352400344042 is a wasteful number, since it uses less digits than its factorization.

20352400344042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30317398.

The product of its (nonzero) digits is 92160, while the sum is 33.

Adding to 20352400344042 its reverse (24044300425302), we get a palindrome (44396700769344).

The spelling of 20352400344042 in words is "twenty trillion, three hundred fifty-two billion, four hundred million, three hundred forty-four thousand, forty-two".