13022811 has 12 divisors (see below), whose sum is σ = 18880888. Its totient is φ = 8649504.

The previous prime is 13022803. The next prime is 13022831. The reversal of 13022811 is 11822031.

It is not a de Polignac number, because 13022811 - 2³ = 13022803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13022831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10 + ... + 5103.

Almost surely, 2^13022811 is an apocalyptic number.

13022811 is a deficient number, since it is larger than the sum of its proper divisors (5858077).

13022811 is a wasteful number, since it uses less digits than its factorization.

13022811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5402 (or 5399 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 13022811 is about 3608.7132055623. The cubic root of 13022811 is about 235.2709173730.

Adding to 13022811 its reverse (11822031), we get a palindrome (24844842).

The spelling of 13022811 in words is "thirteen million, twenty-two thousand, eight hundred eleven".