31440123133032 has 32 divisors (see below), whose sum is σ = 78807696530400. Its totient is φ = 10452389217984.

The previous prime is 31440123132947. The next prime is 31440123133033. The reversal of 31440123133032 is 23033132104413.

It is not an unprimeable number, because it can be changed into a prime (31440123133033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1728229863 + ... + 1728248054.

It is an arithmetic number, because the mean of its divisors is an integer number (2462740516575).

Almost surely, 2^{31440123133032} is an apocalyptic number.

It is an amenable number.

31440123133032 is an abundant number, since it is smaller than the sum of its proper divisors (47367573397368).

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

31440123133032 is a wasteful number, since it uses less digits than its factorization.

31440123133032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3456478305 (or 3456478301 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 31440123133032 its reverse (23033132104413), we get a palindrome (54473255237445).

The spelling of 31440123133032 in words is "thirty-one trillion, four hundred forty billion, one hundred twenty-three million, one hundred thirty-three thousand, thirty-two".