23021020003 has 2 divisors, whose sum is σ = 23021020004. Its totient is φ = 23021020002.

The previous prime is 23021019947. The next prime is 23021020063. The reversal of 23021020003 is 30002012032.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23021020003 is a prime.

It is a super-2 number, since 2×23021020003² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23021020063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510510001 + 11510510002.

It is an arithmetic number, because the mean of its divisors is an integer number (11510510002).

Almost surely, 2^23021020003 is an apocalyptic number.

23021020003 is a deficient number, since it is larger than the sum of its proper divisors (1).

23021020003 is an equidigital number, since it uses as much as digits as its factorization.

23021020003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 23021020003 its reverse (30002012032), we get a palindrome (53023032035).

The spelling of 23021020003 in words is "twenty-three billion, twenty-one million, twenty thousand, three".