31542452513144 has 32 divisors (see below), whose sum is σ = 59292902697600. Its totient is φ = 15731031293280.

The previous prime is 31542452513137. The next prime is 31542452513147. The reversal of 31542452513144 is 44131525424513.

31542452513144 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 31542452513095 and 31542452513104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31542452513147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11746139 + ... + 14179445.

It is an arithmetic number, because the mean of its divisors is an integer number (1852903209300).

Almost surely, 2^{31542452513144} is an apocalyptic number.

It is an amenable number.

31542452513144 is a deficient number, since it is larger than the sum of its proper divisors (27750450184456).

31542452513144 is a wasteful number, since it uses less digits than its factorization.

31542452513144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437443 (or 2437439 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 44.

Adding to 31542452513144 its reverse (44131525424513), we get a palindrome (75673977937657).

The spelling of 31542452513144 in words is "thirty-one trillion, five hundred forty-two billion, four hundred fifty-two million, five hundred thirteen thousand, one hundred forty-four".