20323711460 has 24 divisors (see below), whose sum is σ = 45962855736. Its totient is φ = 7504139520.

The previous prime is 20323711451. The next prime is 20323711493. The reversal of 20323711460 is 6411732302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3234424384 + 17089287076 = 56872^2 + 130726^2 .

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, 39083801 + ... + 39084320.

It is an arithmetic number, because the mean of its divisors is an integer number (1915118989).

Almost surely, 2^20323711460 is an apocalyptic number.

20323711460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20323711460 is an abundant number, since it is smaller than the sum of its proper divisors (25639144276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20323711460 is a wasteful number, since it uses less digits than its factorization.

20323711460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78168143 (or 78168141 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The spelling of 20323711460 in words is "twenty billion, three hundred twenty-three million, seven hundred eleven thousand, four hundred sixty".