20623212035 has 8 divisors (see below), whose sum is σ = 24749806176. Its totient is φ = 16497268480.

The previous prime is 20623211981. The next prime is 20623212037. The reversal of 20623212035 is 53021232602.

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

It is not a de Polignac number, because 20623212035 - 2²⁰ = 20622163459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20623211995 and 20623212013.

It is not an unprimeable number, because it can be changed into a prime (20623212037) 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, 89951 + ... + 222120.

It is an arithmetic number, because the mean of its divisors is an integer number (3093725772).

Almost surely, 2^20623212035 is an apocalyptic number.

20623212035 is a deficient number, since it is larger than the sum of its proper divisors (4126594141).

20623212035 is a wasteful number, since it uses less digits than its factorization.

20623212035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325293.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 20623212035 its reverse (53021232602), we get a palindrome (73644444637).

The spelling of 20623212035 in words is "twenty billion, six hundred twenty-three million, two hundred twelve thousand, thirty-five".