20460020323 has 12 divisors (see below), whose sum is σ = 21681294040. Its totient is φ = 19302329376.

The previous prime is 20460020303. The next prime is 20460020333. The reversal of 20460020323 is 32302006402.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20460020323 is a prime.

It is a super-2 number, since 2×20460020323² (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 = 20460020294 and 20460020303.

It is not an unprimeable number, because it can be changed into a prime (20460020303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226293 + ... + 303526.

Almost surely, 2^20460020323 is an apocalyptic number.

20460020323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20460020323 is a deficient number, since it is larger than the sum of its proper divisors (1221273717).

20460020323 is an equidigital number, since it uses as much as digits as its factorization.

20460020323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529938 (or 529915 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20460020323 its reverse (32302006402), we get a palindrome (52762026725).

The spelling of 20460020323 in words is "twenty billion, four hundred sixty million, twenty thousand, three hundred twenty-three".