20400001421330 has 32 divisors (see below), whose sum is σ = 36820426271040. Its totient is φ = 8137688328000.

The previous prime is 20400001421297. The next prime is 20400001421447. The reversal of 20400001421330 is 3312410000402.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40023080 + ... + 40529580.

It is an arithmetic number, because the mean of its divisors is an integer number (1150638320970).

Almost surely, 2^{20400001421330} is an apocalyptic number.

20400001421330 is a deficient number, since it is larger than the sum of its proper divisors (16420424849710).

20400001421330 is a wasteful number, since it uses less digits than its factorization.

20400001421330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517514.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20400001421330 its reverse (3312410000402), we get a palindrome (23712411421732).

The spelling of 20400001421330 in words is "twenty trillion, four hundred billion, one million, four hundred twenty-one thousand, three hundred thirty".