115444123331405 has 32 divisors (see below), whose sum is σ = 151419661797888. Its totient is φ = 83796724065600.

The previous prime is 115444123331359. The next prime is 115444123331497. The reversal of 115444123331405 is 504133321444511.

It is not a de Polignac number, because 115444123331405 - 2¹⁰ = 115444123330381 is a prime.

It is a super-2 number, since 2×115444123331405² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281721794 + ... + 282131276.

It is an arithmetic number, because the mean of its divisors is an integer number (4731864431184).

Almost surely, 2^{115444123331405} is an apocalyptic number.

It is an amenable number.

115444123331405 is a deficient number, since it is larger than the sum of its proper divisors (35975538466483).

115444123331405 is a wasteful number, since it uses less digits than its factorization.

115444123331405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419417.

The product of its (nonzero) digits is 345600, while the sum is 41.

Adding to 115444123331405 its reverse (504133321444511), we get a palindrome (619577444775916).

The spelling of 115444123331405 in words is "one hundred fifteen trillion, four hundred forty-four billion, one hundred twenty-three million, three hundred thirty-one thousand, four hundred five".