31103110412144 has 20 divisors (see below), whose sum is σ = 60262540089720. Its totient is φ = 15551487163200.

The previous prime is 31103110412131. The next prime is 31103110412177. The reversal of 31103110412144 is 44121401130113.

It is a congruent number.

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, 374339 + ... + 7895970.

It is an arithmetic number, because the mean of its divisors is an integer number (3013127004486).

Almost surely, 2^{31103110412144} is an apocalyptic number.

It is an amenable number.

31103110412144 is a deficient number, since it is larger than the sum of its proper divisors (29159429677576).

31103110412144 is a wasteful number, since it uses less digits than its factorization.

31103110412144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8505368 (or 8505362 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 31103110412144 its reverse (44121401130113), we get a palindrome (75224511542257).

The spelling of 31103110412144 in words is "thirty-one trillion, one hundred three billion, one hundred ten million, four hundred twelve thousand, one hundred forty-four".