12013023120101 has 4 divisors (see below), whose sum is σ = 12056391434892. Its totient is φ = 11969654805312.

The previous prime is 12013023120089. The next prime is 12013023120103. The reversal of 12013023120101 is 10102132031021.

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 6961312864900 + 5051710255201 = 2638430^2 + 2247601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12013023120101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12013023120101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013023120103) 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, 21684156980 + ... + 21684157533.

It is an arithmetic number, because the mean of its divisors is an integer number (3014097858723).

Almost surely, 2^{12013023120101} is an apocalyptic number.

It is an amenable number.

12013023120101 is a deficient number, since it is larger than the sum of its proper divisors (43368314791).

12013023120101 is an equidigital number, since it uses as much as digits as its factorization.

12013023120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43368314790.

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

Adding to 12013023120101 its reverse (10102132031021), we get a palindrome (22115155151122).

The spelling of 12013023120101 in words is "twelve trillion, thirteen billion, twenty-three million, one hundred twenty thousand, one hundred one".