13311730 has 16 divisors (see below), whose sum is σ = 24231960. Its totient is φ = 5264512.

The previous prime is 13311709. The next prime is 13311751. The reversal of 13311730 is 3711331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13311709) and next prime (13311751).

It can be written as a sum of positive squares in 4 ways, for example, as 7006609 + 6305121 = 2647^2 + 2511^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13311698 and 13311707.

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, 6589 + ... + 8368.

Almost surely, 2^13311730 is an apocalyptic number.

13311730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13311730 is a deficient number, since it is larger than the sum of its proper divisors (10920230).

13311730 is a wasteful number, since it uses less digits than its factorization.

13311730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15053.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 13311730 is about 3648.5243592444. The cubic root of 13311730 is about 236.9980831502.

It can be divided in two parts, 13311 and 730, that added together give a palindrome (14041).

The spelling of 13311730 in words is "thirteen million, three hundred eleven thousand, seven hundred thirty".