20304031343400 has 432 divisors, whose sum is σ = 83495156191200. Its totient is φ = 4396662063360.

The previous prime is 20304031343353. The next prime is 20304031343471. The reversal of 20304031343400 is 434313040302.

20304031343400 is a `hidden beast` number, since 2 + 0 + 3 + 0 + 4 + 0 + 313 + 4 + 340 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 4382212 + ... + 7733811.

Almost surely, 2^{20304031343400} is an apocalyptic number.

20304031343400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20304031343400 is an abundant number, since it is smaller than the sum of its proper divisors (63191124847800).

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

20304031343400 is a wasteful number, since it uses less digits than its factorization.

20304031343400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12116078 (or 12116059 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 20304031343400 its reverse (434313040302), we get a palindrome (20738344383702).

The spelling of 20304031343400 in words is "twenty trillion, three hundred four billion, thirty-one million, three hundred forty-three thousand, four hundred".