42031123134 has 192 divisors, whose sum is σ = 114866035200. Its totient is φ = 9976032000.

The previous prime is 42031123133. The next prime is 42031123139. The reversal of 42031123134 is 43132113024.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42031123133) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6669517 + ... + 6675815.

It is an arithmetic number, because the mean of its divisors is an integer number (598260600).

Almost surely, 2^42031123134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42031123134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57433017600).

42031123134 is an abundant number, since it is smaller than the sum of its proper divisors (72834912066).

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

42031123134 is a wasteful number, since it uses less digits than its factorization.

42031123134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6447 (or 6436 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 42031123134 its reverse (43132113024), we get a palindrome (85163236158).

The spelling of 42031123134 in words is "forty-two billion, thirty-one million, one hundred twenty-three thousand, one hundred thirty-four".