43401531441123 has 16 divisors (see below), whose sum is σ = 64298822797440. Its totient is φ = 28934238329352.

The previous prime is 43401531441091. The next prime is 43401531441133. The reversal of 43401531441123 is 32114413510434.

43401531441123 is a `hidden beast` number, since 4 + 3 + 4 + 0 + 1 + 531 + 4 + 4 + 112 + 3 = 666.

It is not a de Polignac number, because 43401531441123 - 2⁵ = 43401531441091 is a prime.

It is a super-2 number, since 2×43401531441123² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43401531441133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3928840 + ... + 10111322.

It is an arithmetic number, because the mean of its divisors is an integer number (4018676424840).

Almost surely, 2^{43401531441123} is an apocalyptic number.

43401531441123 is a deficient number, since it is larger than the sum of its proper divisors (20897291356317).

43401531441123 is a wasteful number, since it uses less digits than its factorization.

43401531441123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442495 (or 6442489 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 43401531441123 its reverse (32114413510434), we get a palindrome (75515944951557).

The spelling of 43401531441123 in words is "forty-three trillion, four hundred one billion, five hundred thirty-one million, four hundred forty-one thousand, one hundred twenty-three".