21311130203027 has 16 divisors (see below), whose sum is σ = 24496930517760. Its totient is φ = 18160712246688.

The previous prime is 21311130203021. The next prime is 21311130203047. The reversal of 21311130203027 is 72030203111312.

It is a cyclic number.

It is not a de Polignac number, because 21311130203027 - 2⁶ = 21311130202963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21311130202987 and 21311130203005.

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 15 ways as a sum of consecutive naturals, for example, 3976208 + ... + 7644114.

It is an arithmetic number, because the mean of its divisors is an integer number (1531058157360).

Almost surely, 2^{21311130203027} is an apocalyptic number.

21311130203027 is a deficient number, since it is larger than the sum of its proper divisors (3185800314733).

21311130203027 is a wasteful number, since it uses less digits than its factorization.

21311130203027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672730.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 21311130203027 its reverse (72030203111312), we get a palindrome (93341333314339).

The spelling of 21311130203027 in words is "twenty-one trillion, three hundred eleven billion, one hundred thirty million, two hundred three thousand, twenty-seven".