30431100340 has 96 divisors (see below), whose sum is σ = 69207022080. Its totient is φ = 11203144704.

The previous prime is 30431100311. The next prime is 30431100367. The reversal of 30431100340 is 4300113403.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2440602 + ... + 2453038.

It is an arithmetic number, because the mean of its divisors is an integer number (720906480).

Almost surely, 2^30431100340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30431100340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34603511040).

30431100340 is an abundant number, since it is smaller than the sum of its proper divisors (38775921740).

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

30431100340 is a wasteful number, since it uses less digits than its factorization.

30431100340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12649 (or 12647 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30431100340 its reverse (4300113403), we get a palindrome (34731213743).

The spelling of 30431100340 in words is "thirty billion, four hundred thirty-one million, one hundred thousand, three hundred forty".