5231123408 has 80 divisors (see below), whose sum is σ = 11761390080. Its totient is φ = 2207582208.

The previous prime is 5231123399. The next prime is 5231123507. The reversal of 5231123408 is 8043211325.

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 15 ways as a sum of consecutive naturals, for example, 5246366 + ... + 5247362.

It is an arithmetic number, because the mean of its divisors is an integer number (147017376).

Almost surely, 2^5231123408 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 5231123408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5880695040).

5231123408 is an abundant number, since it is smaller than the sum of its proper divisors (6530266672).

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

5231123408 is a wasteful number, since it uses less digits than its factorization.

5231123408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684 (or 1678 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 5231123408 is about 72326.5055702265. The cubic root of 5231123408 is about 1735.9277879878.

The spelling of 5231123408 in words is "five billion, two hundred thirty-one million, one hundred twenty-three thousand, four hundred eight".