31445525041244 has 48 divisors (see below), whose sum is σ = 60197647297536. Its totient is φ = 14308312262400.

The previous prime is 31445525041181. The next prime is 31445525041303. The reversal of 31445525041244 is 44214052554413.

It is a junction number, because it is equal to n+sod(n) for n = 31445525041195 and 31445525041204.

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 15 ways as a sum of consecutive naturals, for example, 3900974 + ... + 8837909.

It is an arithmetic number, because the mean of its divisors is an integer number (1254117652032).

Almost surely, 2^{31445525041244} is an apocalyptic number.

31445525041244 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31445525041244 is a deficient number, since it is larger than the sum of its proper divisors (28752122256292).

31445525041244 is a wasteful number, since it uses less digits than its factorization.

31445525041244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12740106 (or 12740104 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 44.

Adding to 31445525041244 its reverse (44214052554413), we get a palindrome (75659577595657).

The spelling of 31445525041244 in words is "thirty-one trillion, four hundred forty-five billion, five hundred twenty-five million, forty-one thousand, two hundred forty-four".