15131112053444 has 12 divisors (see below), whose sum is σ = 26504688661500. Its totient is φ = 7558343864448.

The previous prime is 15131112053423. The next prime is 15131112053467. The reversal of 15131112053444 is 44435021113151.

It can be written as a sum of positive squares in 2 ways, for example, as 12995217492544 + 2135894560900 = 3604888^2 + 1461470^2 .

It is a super-2 number, since 2×15131112053444² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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, 1803035849 + ... + 1803044240.

It is an arithmetic number, because the mean of its divisors is an integer number (2208724055125).

Almost surely, 2^{15131112053444} is an apocalyptic number.

It is an amenable number.

15131112053444 is a deficient number, since it is larger than the sum of its proper divisors (11373576608056).

15131112053444 is a wasteful number, since it uses less digits than its factorization.

15131112053444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3606081142 (or 3606081140 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 15131112053444 its reverse (44435021113151), we get a palindrome (59566133166595).

The spelling of 15131112053444 in words is "fifteen trillion, one hundred thirty-one billion, one hundred twelve million, fifty-three thousand, four hundred forty-four".