10420021323 has 24 divisors (see below), whose sum is σ = 15141949680. Its totient is φ = 6904880640.

The previous prime is 10420021309. The next prime is 10420021343. The reversal of 10420021323 is 32312002401.

10420021323 is a `hidden beast` number, since 10 + 420 + 0 + 213 + 23 = 666.

It is not a de Polignac number, because 10420021323 - 2⁹ = 10420020811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10420021296 and 10420021305.

It is not an unprimeable number, because it can be changed into a prime (10420021343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1229940 + ... + 1238382.

It is an arithmetic number, because the mean of its divisors is an integer number (630914570).

Almost surely, 2^10420021323 is an apocalyptic number.

10420021323 is a deficient number, since it is larger than the sum of its proper divisors (4721928357).

10420021323 is a wasteful number, since it uses less digits than its factorization.

10420021323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9259 (or 9256 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 10420021323 its reverse (32312002401), we get a palindrome (42732023724).

The spelling of 10420021323 in words is "ten billion, four hundred twenty million, twenty-one thousand, three hundred twenty-three".