31221301441044 has 96 divisors (see below), whose sum is σ = 85603123025280. Its totient is φ = 8731449792000.

The previous prime is 31221301441019. The next prime is 31221301441051. The reversal of 31221301441044 is 44014410312213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6570694 + ... + 10276994.

It is an arithmetic number, because the mean of its divisors is an integer number (891699198180).

Almost surely, 2^{31221301441044} is an apocalyptic number.

It is an amenable number.

31221301441044 is an abundant number, since it is smaller than the sum of its proper divisors (54381821584236).

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

31221301441044 is a wasteful number, since it uses less digits than its factorization.

31221301441044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711241 (or 3711239 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 31221301441044 its reverse (44014410312213), we get a palindrome (75235711753257).

The spelling of 31221301441044 in words is "thirty-one trillion, two hundred twenty-one billion, three hundred one million, four hundred forty-one thousand, forty-four".