20623100215 has 8 divisors (see below), whose sum is σ = 24763072608. Its totient is φ = 16488245280.

The previous prime is 20623100209. The next prime is 20623100233. The reversal of 20623100215 is 51200132602.

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

It is not a de Polignac number, because 20623100215 - 2⁷ = 20623100087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1270491 + ... + 1286620.

It is an arithmetic number, because the mean of its divisors is an integer number (3095384076).

Almost surely, 2^20623100215 is an apocalyptic number.

20623100215 is a deficient number, since it is larger than the sum of its proper divisors (4139972393).

20623100215 is a wasteful number, since it uses less digits than its factorization.

20623100215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558729.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 20623100215 its reverse (51200132602), we get a palindrome (71823232817).

The spelling of 20623100215 in words is "twenty billion, six hundred twenty-three million, one hundred thousand, two hundred fifteen".