31144216306424 has 128 divisors (see below), whose sum is σ = 65418821294400. Its totient is φ = 13807170109440.

The previous prime is 31144216306417. The next prime is 31144216306451. The reversal of 31144216306424 is 42460361244113.

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 177025847 + ... + 177201689.

Almost surely, 2^{31144216306424} 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 31144216306424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32709410647200).

31144216306424 is an abundant number, since it is smaller than the sum of its proper divisors (34274604987976).

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

31144216306424 is a wasteful number, since it uses less digits than its factorization.

31144216306424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176545 (or 176541 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 31144216306424 in words is "thirty-one trillion, one hundred forty-four billion, two hundred sixteen million, three hundred six thousand, four hundred twenty-four".