31430323240134 has 96 divisors (see below), whose sum is σ = 78752421248256. Its totient is φ = 8288903488320.

The previous prime is 31430323240093. The next prime is 31430323240139. The reversal of 31430323240134 is 43104232303413.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31430323240095 and 31430323240104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31430323240139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80797969 + ... + 81186035.

It is an arithmetic number, because the mean of its divisors is an integer number (820337721336).

Almost surely, 2^{31430323240134} is an apocalyptic number.

31430323240134 is an abundant number, since it is smaller than the sum of its proper divisors (47322098008122).

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

31430323240134 is a wasteful number, since it uses less digits than its factorization.

31430323240134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409290 (or 409283 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 31430323240134 its reverse (43104232303413), we get a palindrome (74534555543547).

The spelling of 31430323240134 in words is "thirty-one trillion, four hundred thirty billion, three hundred twenty-three million, two hundred forty thousand, one hundred thirty-four".