21311130203026 has 8 divisors (see below), whose sum is σ = 31966714899504. Its totient is φ = 10655558569860.

The previous prime is 21311130203021. The next prime is 21311130203047. The reversal of 21311130203026 is 62030203111312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21311130203021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4647981 + ... + 8014111.

It is an arithmetic number, because the mean of its divisors is an integer number (3995839362438).

Almost surely, 2^{21311130203026} is an apocalyptic number.

21311130203026 is a deficient number, since it is larger than the sum of its proper divisors (10655584696478).

21311130203026 is a wasteful number, since it uses less digits than its factorization.

21311130203026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6531656.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21311130203026 its reverse (62030203111312), we get a palindrome (83341333314338).

The spelling of 21311130203026 in words is "twenty-one trillion, three hundred eleven billion, one hundred thirty million, two hundred three thousand, twenty-six".