20431430355104 has 96 divisors (see below), whose sum is σ = 40429389772800. Its totient is φ = 10163828505600.

The previous prime is 20431430355053. The next prime is 20431430355109. The reversal of 20431430355104 is 40155303413402.

It is not an unprimeable number, because it can be changed into a prime (20431430355109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12793631234 + ... + 12793632830.

It is an arithmetic number, because the mean of its divisors is an integer number (421139476800).

Almost surely, 2^{20431430355104} is an apocalyptic number.

It is an amenable number.

20431430355104 is a deficient number, since it is larger than the sum of its proper divisors (19997959417696).

20431430355104 is a wasteful number, since it uses less digits than its factorization.

20431430355104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006 (or 3998 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 20431430355104 its reverse (40155303413402), we get a palindrome (60586733768506).

The spelling of 20431430355104 in words is "twenty trillion, four hundred thirty-one billion, four hundred thirty million, three hundred fifty-five thousand, one hundred four".