15431001442112 has 56 divisors (see below), whose sum is σ = 31368893741640. Its totient is φ = 7527042007040.

The previous prime is 15431001442099. The next prime is 15431001442121. The reversal of 15431001442112 is 21124410013451.

It can be written as a sum of positive squares in 4 ways, for example, as 52870564096 + 15378130878016 = 229936^2 + 3921496^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84057368 + ... + 84240744.

It is an arithmetic number, because the mean of its divisors is an integer number (560158816815).

Almost surely, 2^{15431001442112} is an apocalyptic number.

It is an amenable number.

15431001442112 is an abundant number, since it is smaller than the sum of its proper divisors (15937892299528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15431001442112 is a wasteful number, since it uses less digits than its factorization.

15431001442112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215499 (or 215489 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 15431001442112 its reverse (21124410013451), we get a palindrome (36555411455563).

The spelling of 15431001442112 in words is "fifteen trillion, four hundred thirty-one billion, one million, four hundred forty-two thousand, one hundred twelve".