12230121001013 has 4 divisors (see below), whose sum is σ = 12338352160428. Its totient is φ = 12121889841600.

The previous prime is 12230121001001. The next prime is 12230121001037. The reversal of 12230121001013 is 31010012103221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6098247508369 + 6131873492644 = 2469463^2 + 2476262^2 .

It is a cyclic number.

It is not a de Polignac number, because 12230121001013 - 2⁴⁰ = 11130609373237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12230121000982 and 12230121001000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230121001613) 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, 54115579538 + ... + 54115579763.

It is an arithmetic number, because the mean of its divisors is an integer number (3084588040107).

Almost surely, 2^{12230121001013} is an apocalyptic number.

It is an amenable number.

12230121001013 is a deficient number, since it is larger than the sum of its proper divisors (108231159415).

12230121001013 is a wasteful number, since it uses less digits than its factorization.

12230121001013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108231159414.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12230121001013 its reverse (31010012103221), we get a palindrome (43240133104234).

The spelling of 12230121001013 in words is "twelve trillion, two hundred thirty billion, one hundred twenty-one million, one thousand, thirteen".