13231022 has 16 divisors (see below), whose sum is σ = 23055072. Its totient is φ = 5577120.

The previous prime is 13231019. The next prime is 13231027. The reversal of 13231022 is 22013231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 13230988 and 13231006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231027) 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, 6893 + ... + 8600.

It is an arithmetic number, because the mean of its divisors is an integer number (1440942).

Almost surely, 2^13231022 is an apocalyptic number.

13231022 is a deficient number, since it is larger than the sum of its proper divisors (9824050).

13231022 is a wasteful number, since it uses less digits than its factorization.

13231022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15563.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13231022 is about 3637.4471817471. The cubic root of 13231022 is about 236.5181448175.

Adding to 13231022 its reverse (22013231), we get a palindrome (35244253).

It can be divided in two parts, 132 and 31022, that multiplied together give a palindrome (4094904).

The spelling of 13231022 in words is "thirteen million, two hundred thirty-one thousand, twenty-two".