31043244442042 has 24 divisors (see below), whose sum is σ = 56035131598260. Its totient is φ = 12845480457600.

The previous prime is 31043244441967. The next prime is 31043244442043. The reversal of 31043244442042 is 24024444234013.

It can be written as a sum of positive squares in 2 ways, for example, as 29987901206641 + 1055343235401 = 5476121^2 + 1027299^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31043244441992 and 31043244442010.

It is not an unprimeable number, because it can be changed into a prime (31043244442043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5461510959 + ... + 5461516642.

Almost surely, 2^{31043244442042} is an apocalyptic number.

31043244442042 is a deficient number, since it is larger than the sum of its proper divisors (24991887156218).

31043244442042 is a wasteful number, since it uses less digits than its factorization.

31043244442042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10923027646 (or 10923027639 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 37.

Adding to 31043244442042 its reverse (24024444234013), we get a palindrome (55067688676055).

The spelling of 31043244442042 in words is "thirty-one trillion, forty-three billion, two hundred forty-four million, four hundred forty-two thousand, forty-two".