31402133220444 has 192 divisors, whose sum is σ = 85665439641600. Its totient is φ = 8766296985600.

The previous prime is 31402133220413. The next prime is 31402133220467. The reversal of 31402133220444 is 44402233120413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9512913594 + ... + 9512916894.

It is an arithmetic number, because the mean of its divisors is an integer number (446174164800).

Almost surely, 2^{31402133220444} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31402133220444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42832719820800).

31402133220444 is an abundant number, since it is smaller than the sum of its proper divisors (54263306421156).

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

31402133220444 is a wasteful number, since it uses less digits than its factorization.

31402133220444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6708 (or 6706 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 31402133220444 its reverse (44402233120413), we get a palindrome (75804366340857).

The spelling of 31402133220444 in words is "thirty-one trillion, four hundred two billion, one hundred thirty-three million, two hundred twenty thousand, four hundred forty-four".