20321504131402 has 16 divisors (see below), whose sum is σ = 30784926678912. Its totient is φ = 10059867565200.

The previous prime is 20321504131343. The next prime is 20321504131403. The reversal of 20321504131402 is 20413140512302.

It is not an unprimeable number, because it can be changed into a prime (20321504131403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5876443 + ... + 8670385.

It is an arithmetic number, because the mean of its divisors is an integer number (1924057917432).

Almost surely, 2^{20321504131402} is an apocalyptic number.

20321504131402 is a deficient number, since it is larger than the sum of its proper divisors (10463422547510).

20321504131402 is a wasteful number, since it uses less digits than its factorization.

20321504131402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830053.

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

Adding to 20321504131402 its reverse (20413140512302), we get a palindrome (40734644643704).

The spelling of 20321504131402 in words is "twenty trillion, three hundred twenty-one billion, five hundred four million, one hundred thirty-one thousand, four hundred two".