31031204440244 has 12 divisors (see below), whose sum is σ = 55629110399268. Its totient is φ = 15137172897600.

The previous prime is 31031204440211. The next prime is 31031204440277. The reversal of 31031204440244 is 44204440213013.

It is an interprime number because it is at equal distance from previous prime (31031204440211) and next prime (31031204440277).

It can be written as a sum of positive squares in 2 ways, for example, as 11916925368100 + 19114279072144 = 3452090^2 + 4371988^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31031204440244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94607330447 + ... + 94607330774.

It is an arithmetic number, because the mean of its divisors is an integer number (4635759199939).

Almost surely, 2^{31031204440244} is an apocalyptic number.

It is an amenable number.

31031204440244 is a deficient number, since it is larger than the sum of its proper divisors (24597905959024).

31031204440244 is a wasteful number, since it uses less digits than its factorization.

31031204440244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189214661266 (or 189214661264 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 31031204440244 its reverse (44204440213013), we get a palindrome (75235644653257).

The spelling of 31031204440244 in words is "thirty-one trillion, thirty-one billion, two hundred four million, four hundred forty thousand, two hundred forty-four".