13112444112021 has 16 divisors (see below), whose sum is σ = 19438208464320. Its totient is φ = 8736065007120.

The previous prime is 13112444112013. The next prime is 13112444112029. The reversal of 13112444112021 is 12021144421131.

13112444112021 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 2 + 44 + 411 + 202 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (13112444112013) and next prime (13112444112029).

It is not a de Polignac number, because 13112444112021 - 2³ = 13112444112013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112444112029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154523490 + ... + 154608323.

It is an arithmetic number, because the mean of its divisors is an integer number (1214888029020).

Almost surely, 2^{13112444112021} is an apocalyptic number.

It is an amenable number.

13112444112021 is a deficient number, since it is larger than the sum of its proper divisors (6325764352299).

13112444112021 is a wasteful number, since it uses less digits than its factorization.

13112444112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309133393 (or 309133387 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 13112444112021 its reverse (12021144421131), we get a palindrome (25133588533152).

The spelling of 13112444112021 in words is "thirteen trillion, one hundred twelve billion, four hundred forty-four million, one hundred twelve thousand, twenty-one".