44121311323021 has 4 divisors (see below), whose sum is σ = 46443485603200. Its totient is φ = 41799137042844.

The previous prime is 44121311323009. The next prime is 44121311323031. The reversal of 44121311323021 is 12032311312144.

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 44121311323021 - 2¹¹ = 44121311320973 is a prime.

It is a super-2 number, since 2×44121311323021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44121311323031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1161087140061 + ... + 1161087140098.

It is an arithmetic number, because the mean of its divisors is an integer number (11610871400800).

Almost surely, 2^{44121311323021} is an apocalyptic number.

It is an amenable number.

44121311323021 is a deficient number, since it is larger than the sum of its proper divisors (2322174280179).

44121311323021 is a wasteful number, since it uses less digits than its factorization.

44121311323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322174280178.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 44121311323021 its reverse (12032311312144), we get a palindrome (56153622635165).

The spelling of 44121311323021 in words is "forty-four trillion, one hundred twenty-one billion, three hundred eleven million, three hundred twenty-three thousand, twenty-one".