20863123237 has 8 divisors (see below), whose sum is σ = 22760877600. Its totient is φ = 18965553360.

The previous prime is 20863123187. The next prime is 20863123243. The reversal of 20863123237 is 73232136802.

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 20863123237 - 2¹¹ = 20863121189 is a prime.

It is a super-2 number, since 2×20863123237² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20863123196 and 20863123205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20863120237) 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, 309798 + ... + 371080.

It is an arithmetic number, because the mean of its divisors is an integer number (2845109700).

Almost surely, 2^20863123237 is an apocalyptic number.

It is an amenable number.

20863123237 is a deficient number, since it is larger than the sum of its proper divisors (1897754363).

20863123237 is a wasteful number, since it uses less digits than its factorization.

20863123237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92243.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 20863123237 in words is "twenty billion, eight hundred sixty-three million, one hundred twenty-three thousand, two hundred thirty-seven".