20211304431404 has 12 divisors (see below), whose sum is σ = 35586775288344. Its totient is φ = 10043654349024.

The previous prime is 20211304431379. The next prime is 20211304431421. The reversal of 20211304431404 is 40413440311202.

It is a super-2 number, since 2×20211304431404² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15499465937 + ... + 15499467240.

It is an arithmetic number, because the mean of its divisors is an integer number (2965564607362).

Almost surely, 2^{20211304431404} is an apocalyptic number.

It is an amenable number.

20211304431404 is a deficient number, since it is larger than the sum of its proper divisors (15375470856940).

20211304431404 is a wasteful number, since it uses less digits than its factorization.

20211304431404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30998933344 (or 30998933342 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 20211304431404 its reverse (40413440311202), we get a palindrome (60624744742606).

The spelling of 20211304431404 in words is "twenty trillion, two hundred eleven billion, three hundred four million, four hundred thirty-one thousand, four hundred four".