31342044144 has 80 divisors (see below), whose sum is σ = 82215372800. Its totient is φ = 10286984448.

The previous prime is 31342044053. The next prime is 31342044193. The reversal of 31342044144 is 44144024313.

It is a super-2 number, since 2×31342044144² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 1403337 + ... + 1425495.

It is an arithmetic number, because the mean of its divisors is an integer number (1027692160).

Almost surely, 2^31342044144 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 31342044144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41107686400).

31342044144 is an abundant number, since it is smaller than the sum of its proper divisors (50873328656).

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

31342044144 is a wasteful number, since it uses less digits than its factorization.

31342044144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22622 (or 22616 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 31342044144 its reverse (44144024313), we get a palindrome (75486068457).

The spelling of 31342044144 in words is "thirty-one billion, three hundred forty-two million, forty-four thousand, one hundred forty-four".