44155031313131 has 4 divisors (see below), whose sum is σ = 44173299843192. Its totient is φ = 44136762783072.

The previous prime is 44155031313109. The next prime is 44155031313143. The reversal of 44155031313131 is 13131313055144.

44155031313131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44155031313131 is a prime.

It is a super-2 number, since 2×44155031313131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44155031313091 and 44155031313100.

It is not an unprimeable number, because it can be changed into a prime (44155031313181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9134261405 + ... + 9134266238.

It is an arithmetic number, because the mean of its divisors is an integer number (11043324960798).

Almost surely, 2^{44155031313131} is an apocalyptic number.

44155031313131 is a deficient number, since it is larger than the sum of its proper divisors (18268530061).

44155031313131 is a wasteful number, since it uses less digits than its factorization.

44155031313131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18268530060.

The product of its (nonzero) digits is 32400, while the sum is 35.

Adding to 44155031313131 its reverse (13131313055144), we get a palindrome (57286344368275).

The spelling of 44155031313131 in words is "forty-four trillion, one hundred fifty-five billion, thirty-one million, three hundred thirteen thousand, one hundred thirty-one".