21323030131203 has 16 divisors (see below), whose sum is σ = 28724202093216. Its totient is φ = 14068609827840.

The previous prime is 21323030131201. The next prime is 21323030131213. The reversal of 21323030131203 is 30213103032312.

It is not a de Polignac number, because 21323030131203 - 2¹ = 21323030131201 is a prime.

It is a super-2 number, since 2×21323030131203² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21323030131201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22481593 + ... + 23410853.

It is an arithmetic number, because the mean of its divisors is an integer number (1795262630826).

Almost surely, 2^{21323030131203} is an apocalyptic number.

21323030131203 is a deficient number, since it is larger than the sum of its proper divisors (7401171962013).

21323030131203 is an equidigital number, since it uses as much as digits as its factorization.

21323030131203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008214.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21323030131203 its reverse (30213103032312), we get a palindrome (51536133163515).

The spelling of 21323030131203 in words is "twenty-one trillion, three hundred twenty-three billion, thirty million, one hundred thirty-one thousand, two hundred three".