21023130113003 has 2 divisors, whose sum is σ = 21023130113004. Its totient is φ = 21023130113002.

The previous prime is 21023130112991. The next prime is 21023130113021. The reversal of 21023130113003 is 30031103132012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21023130113003 - 2⁶ = 21023130112939 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21023130113033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511565056501 + 10511565056502.

It is an arithmetic number, because the mean of its divisors is an integer number (10511565056502).

Almost surely, 2^{21023130113003} is an apocalyptic number.

21023130113003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21023130113003 is an equidigital number, since it uses as much as digits as its factorization.

21023130113003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21023130113003 its reverse (30031103132012), we get a palindrome (51054233245015).

The spelling of 21023130113003 in words is "twenty-one trillion, twenty-three billion, one hundred thirty million, one hundred thirteen thousand, three".