20400143151304 has 32 divisors (see below), whose sum is σ = 43756992777600. Its totient is φ = 8734438431360.

The previous prime is 20400143151281. The next prime is 20400143151313. The reversal of 20400143151304 is 40315134100402.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176609709 + ... + 176725180.

It is an arithmetic number, because the mean of its divisors is an integer number (1367406024300).

Almost surely, 2^{20400143151304} is an apocalyptic number.

It is an amenable number.

20400143151304 is an abundant number, since it is smaller than the sum of its proper divisors (23356849626296).

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

20400143151304 is a wasteful number, since it uses less digits than its factorization.

20400143151304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353335933 (or 353335929 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 20400143151304 its reverse (40315134100402), we get a palindrome (60715277251706).

The spelling of 20400143151304 in words is "twenty trillion, four hundred billion, one hundred forty-three million, one hundred fifty-one thousand, three hundred four".