20611130 has 8 divisors (see below), whose sum is σ = 37100052. Its totient is φ = 8244448.

The previous prime is 20611127. The next prime is 20611133. The reversal of 20611130 is 3111602.

It is an interprime number because it is at equal distance from previous prime (20611127) and next prime (20611133).

It can be written as a sum of positive squares in 2 ways, for example, as 18309841 + 2301289 = 4279^2 + 1517^2 .

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 (20611133) 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, 1030547 + ... + 1030566.

Almost surely, 2^20611130 is an apocalyptic number.

20611130 is a deficient number, since it is larger than the sum of its proper divisors (16488922).

20611130 is a wasteful number, since it uses less digits than its factorization.

20611130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061120.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 20611130 is about 4539.9482375904. The cubic root of 20611130 is about 274.1788396813.

Adding to 20611130 its reverse (3111602), we get a palindrome (23722732).

The spelling of 20611130 in words is "twenty million, six hundred eleven thousand, one hundred thirty".