31543964130 has 128 divisors (see below), whose sum is σ = 91135180800. Its totient is φ = 6977396160.

The previous prime is 31543964119. The next prime is 31543964159. The reversal of 31543964130 is 3146934513.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 269547 + ... + 368433.

It is an arithmetic number, because the mean of its divisors is an integer number (711993600).

Almost surely, 2^31543964130 is an apocalyptic number.

31543964130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31543964130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45567590400).

31543964130 is an abundant number, since it is smaller than the sum of its proper divisors (59591216670).

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

31543964130 is a wasteful number, since it uses less digits than its factorization.

31543964130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98949 (or 98935 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 39.

The spelling of 31543964130 in words is "thirty-one billion, five hundred forty-three million, nine hundred sixty-four thousand, one hundred thirty".