3131220344454 has 48 divisors (see below), whose sum is σ = 7181467722000. Its totient is φ = 984313044288.

The previous prime is 3131220344443. The next prime is 3131220344507. The reversal of 3131220344454 is 4544430221313.

3131220344454 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 2 + 203 + 4 + 445 + 4 = 666.

3131220344454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69727629 + ... + 69772520.

It is an arithmetic number, because the mean of its divisors is an integer number (149613910875).

Almost surely, 2^{3131220344454} is an apocalyptic number.

3131220344454 is an abundant number, since it is smaller than the sum of its proper divisors (4050247377546).

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

3131220344454 is a wasteful number, since it uses less digits than its factorization.

3131220344454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139500229 (or 139500226 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 3131220344454 its reverse (4544430221313), we get a palindrome (7675650565767).

The spelling of 3131220344454 in words is "three trillion, one hundred thirty-one billion, two hundred twenty million, three hundred forty-four thousand, four hundred fifty-four".