31103142224401 has 16 divisors (see below), whose sum is σ = 34662036825360. Its totient is φ = 27711515301120.

The previous prime is 31103142224393. The next prime is 31103142224411. The reversal of 31103142224401 is 10442224130113.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1430119407376 + 29673022817025 = 1195876^2 + 5447295^2 .

It is a cyclic number.

It is not a de Polignac number, because 31103142224401 - 2³ = 31103142224393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31103142224401.

It is not an unprimeable number, because it can be changed into a prime (31103142224411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12322270 + ... + 14630263.

It is an arithmetic number, because the mean of its divisors is an integer number (2166377301585).

Almost surely, 2^{31103142224401} is an apocalyptic number.

It is an amenable number.

31103142224401 is a deficient number, since it is larger than the sum of its proper divisors (3558894600959).

31103142224401 is a wasteful number, since it uses less digits than its factorization.

31103142224401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26955636.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 31103142224401 its reverse (10442224130113), we get a palindrome (41545366354514).

The spelling of 31103142224401 in words is "thirty-one trillion, one hundred three billion, one hundred forty-two million, two hundred twenty-four thousand, four hundred one".