31241442302020 has 48 divisors (see below), whose sum is σ = 67623442009200. Its totient is φ = 12114936820224.

The previous prime is 31241442302003. The next prime is 31241442302087. The reversal of 31241442302020 is 2020324414213.

It can be written as a sum of positive squares in 8 ways, for example, as 3681609237504 + 27559833064516 = 1918752^2 + 5249746^2 .

It is a super-4 number, since 4×31241442302020⁴ (a number of 55 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 31241442302020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76001095 + ... + 76411054.

It is an arithmetic number, because the mean of its divisors is an integer number (1408821708525).

Almost surely, 2^{31241442302020} is an apocalyptic number.

It is an amenable number.

31241442302020 is an abundant number, since it is smaller than the sum of its proper divisors (36381999707180).

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

31241442302020 is a wasteful number, since it uses less digits than its factorization.

31241442302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152412472 (or 152412470 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 31241442302020 its reverse (2020324414213), we get a palindrome (33261766716233).

The spelling of 31241442302020 in words is "thirty-one trillion, two hundred forty-one billion, four hundred forty-two million, three hundred two thousand, twenty".