13323121230021 has 8 divisors (see below), whose sum is σ = 18376718938080. Its totient is φ = 8575802170992.

The previous prime is 13323121230011. The next prime is 13323121230031. The reversal of 13323121230021 is 12003212132331.

It is an interprime number because it is at equal distance from previous prime (13323121230011) and next prime (13323121230031).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13323121230021 - 2¹⁷ = 13323121098949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13323121229973 and 13323121230000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13323121230011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76569662155 + ... + 76569662328.

It is an arithmetic number, because the mean of its divisors is an integer number (2297089867260).

Almost surely, 2^{13323121230021} is an apocalyptic number.

It is an amenable number.

13323121230021 is a deficient number, since it is larger than the sum of its proper divisors (5053597708059).

13323121230021 is a wasteful number, since it uses less digits than its factorization.

13323121230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153139324515.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 13323121230021 its reverse (12003212132331), we get a palindrome (25326333362352).

The spelling of 13323121230021 in words is "thirteen trillion, three hundred twenty-three billion, one hundred twenty-one million, two hundred thirty thousand, twenty-one".