21113023264346 has 16 divisors (see below), whose sum is σ = 34107886090824. Its totient is φ = 9743834240064.

The previous prime is 21113023264339. The next prime is 21113023264349. The reversal of 21113023264346 is 64346232031112.

It can be written as a sum of positive squares in 4 ways, for example, as 5983840623721 + 15129182640625 = 2446189^2 + 3889625^2 .

It is not an unprimeable number, because it can be changed into a prime (21113023264349) 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, 26179985 + ... + 26974388.

Almost surely, 2^{21113023264346} is an apocalyptic number.

21113023264346 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

21113023264346 is a deficient number, since it is larger than the sum of its proper divisors (12994862826478).

21113023264346 is a wasteful number, since it uses less digits than its factorization.

21113023264346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53169665.

The product of its (nonzero) digits is 124416, while the sum is 38.

Adding to 21113023264346 its reverse (64346232031112), we get a palindrome (85459255295458).

The spelling of 21113023264346 in words is "twenty-one trillion, one hundred thirteen billion, twenty-three million, two hundred sixty-four thousand, three hundred forty-six".