21301163246 has 16 divisors (see below), whose sum is σ = 34869011760. Its totient is φ = 9678857280.

The previous prime is 21301163189. The next prime is 21301163297. The reversal of 21301163246 is 64236110312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111551 + ... + 234618.

It is an arithmetic number, because the mean of its divisors is an integer number (2179313235).

Almost surely, 2^21301163246 is an apocalyptic number.

21301163246 is a deficient number, since it is larger than the sum of its proper divisors (13567848514).

21301163246 is a wasteful number, since it uses less digits than its factorization.

21301163246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348979.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 21301163246 its reverse (64236110312), we get a palindrome (85537273558).

The spelling of 21301163246 in words is "twenty-one billion, three hundred one million, one hundred sixty-three thousand, two hundred forty-six".