42431321011144 has 48 divisors (see below), whose sum is σ = 85824910287900. Its totient is φ = 19550307781248.

The previous prime is 42431321011139. The next prime is 42431321011201. The reversal of 42431321011144 is 44111012313424.

It can be written as a sum of positive squares in 2 ways, for example, as 41465743572100 + 965577439044 = 6439390^2 + 982638^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35243142 + ... + 36427210.

Almost surely, 2^{42431321011144} is an apocalyptic number.

It is an amenable number.

42431321011144 is an abundant number, since it is smaller than the sum of its proper divisors (43393589276756).

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

42431321011144 is a wasteful number, since it uses less digits than its factorization.

42431321011144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185262 (or 1184671 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 42431321011144 its reverse (44111012313424), we get a palindrome (86542333324568).

The spelling of 42431321011144 in words is "forty-two trillion, four hundred thirty-one billion, three hundred twenty-one million, eleven thousand, one hundred forty-four".