13121023132223 has 4 divisors (see below), whose sum is σ = 13134027120480. Its totient is φ = 13108019143968.

The previous prime is 13121023132183. The next prime is 13121023132241. The reversal of 13121023132223 is 32223132012131.

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 13121023132223 - 2¹⁸ = 13121022870079 is a prime.

It is a super-2 number, since 2×13121023132223² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13121023132192 and 13121023132201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121023134223) 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, 6501992615 + ... + 6501994632.

It is an arithmetic number, because the mean of its divisors is an integer number (3283506780120).

Almost surely, 2^{13121023132223} is an apocalyptic number.

13121023132223 is a deficient number, since it is larger than the sum of its proper divisors (13003988257).

13121023132223 is a wasteful number, since it uses less digits than its factorization.

13121023132223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13003988256.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 13121023132223 its reverse (32223132012131), we get a palindrome (45344155144354).

The spelling of 13121023132223 in words is "thirteen trillion, one hundred twenty-one billion, twenty-three million, one hundred thirty-two thousand, two hundred twenty-three".