20112344003401 has 4 divisors (see below), whose sum is σ = 21659447388292. Its totient is φ = 18565240618512.

The previous prime is 20112344003377. The next prime is 20112344003431. The reversal of 20112344003401 is 10430044321102.

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 11588577640000 + 8523766363401 = 3404200^2 + 2919549^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112344003401 - 2²⁵ = 20112310448969 is a prime.

It is a super-2 number, since 2×20112344003401² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112344003431) 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, 773551692426 + ... + 773551692451.

It is an arithmetic number, because the mean of its divisors is an integer number (5414861847073).

Almost surely, 2^{20112344003401} is an apocalyptic number.

It is an amenable number.

20112344003401 is a deficient number, since it is larger than the sum of its proper divisors (1547103384891).

20112344003401 is a wasteful number, since it uses less digits than its factorization.

20112344003401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547103384890.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20112344003401 its reverse (10430044321102), we get a palindrome (30542388324503).

The spelling of 20112344003401 in words is "twenty trillion, one hundred twelve billion, three hundred forty-four million, three thousand, four hundred one".