13123021010323 has 4 divisors (see below), whose sum is σ = 14997738297520. Its totient is φ = 11248303723128.

The previous prime is 13123021010321. The next prime is 13123021010399. The reversal of 13123021010323 is 32301012032131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13123021010323 - 2¹ = 13123021010321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13123021010294 and 13123021010303.

It is not an unprimeable number, because it can be changed into a prime (13123021010321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937358643588 + ... + 937358643601.

It is an arithmetic number, because the mean of its divisors is an integer number (3749434574380).

Almost surely, 2^{13123021010323} is an apocalyptic number.

13123021010323 is a deficient number, since it is larger than the sum of its proper divisors (1874717287197).

13123021010323 is an equidigital number, since it uses as much as digits as its factorization.

13123021010323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874717287196.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13123021010323 its reverse (32301012032131), we get a palindrome (45424033042454).

The spelling of 13123021010323 in words is "thirteen trillion, one hundred twenty-three billion, twenty-one million, ten thousand, three hundred twenty-three".