12013232322101 has 4 divisors (see below), whose sum is σ = 12535546770912. Its totient is φ = 11490917873292.

The previous prime is 12013232322097. The next prime is 12013232322107. The reversal of 12013232322101 is 10122323231021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12013232322101 - 2² = 12013232322097 is a prime.

It is a super-2 number, since 2×12013232322101² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 522314448787 = 12013232322101 / (1 + 2 + 0 + 1 + 3 + 2 + 3 + 2 + 3 + 2 + 2 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013232322107) 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, 261157224371 + ... + 261157224416.

It is an arithmetic number, because the mean of its divisors is an integer number (3133886692728).

Almost surely, 2^{12013232322101} is an apocalyptic number.

It is an amenable number.

12013232322101 is a deficient number, since it is larger than the sum of its proper divisors (522314448811).

12013232322101 is an equidigital number, since it uses as much as digits as its factorization.

12013232322101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522314448810.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12013232322101 its reverse (10122323231021), we get a palindrome (22135555553122).

The spelling of 12013232322101 in words is "twelve trillion, thirteen billion, two hundred thirty-two million, three hundred twenty-two thousand, one hundred one".