20623213061 has 8 divisors (see below), whose sum is σ = 22499911200. Its totient is φ = 18746825040.

The previous prime is 20623212979. The next prime is 20623213123. The reversal of 20623213061 is 16031232602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20623213061 - 2¹⁰ = 20623212037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20623213061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20623213361) 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, 74495 + ... + 216323.

It is an arithmetic number, because the mean of its divisors is an integer number (2812488900).

Almost surely, 2^20623213061 is an apocalyptic number.

It is an amenable number.

20623213061 is a deficient number, since it is larger than the sum of its proper divisors (1876698139).

20623213061 is a wasteful number, since it uses less digits than its factorization.

20623213061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155059.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 20623213061 its reverse (16031232602), we get a palindrome (36654445663).

It can be divided in two parts, 2062 and 3213061, that added together give a palindrome (3215123).

The spelling of 20623213061 in words is "twenty billion, six hundred twenty-three million, two hundred thirteen thousand, sixty-one".