31334123340 has 144 divisors (see below), whose sum is σ = 102451553568. Its totient is φ = 7705976832.

The previous prime is 31334123309. The next prime is 31334123341. The reversal of 31334123340 is 4332143313.

31334123340 is a `hidden beast` number, since 313 + 3 + 4 + 1 + 2 + 3 + 340 = 666.

It is not an unprimeable number, because it can be changed into a prime (31334123341) 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, 2842279 + ... + 2853281.

It is an arithmetic number, because the mean of its divisors is an integer number (711469122).

Almost surely, 2^31334123340 is an apocalyptic number.

31334123340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31334123340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51225776784).

31334123340 is an abundant number, since it is smaller than the sum of its proper divisors (71117430228).

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

31334123340 is a wasteful number, since it uses less digits than its factorization.

31334123340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12248 (or 12243 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 31334123340 its reverse (4332143313), we get a palindrome (35666266653).

The spelling of 31334123340 in words is "thirty-one billion, three hundred thirty-four million, one hundred twenty-three thousand, three hundred forty".