31424330000 has 200 divisors, whose sum is σ = 92068428672. Its totient is φ = 10139904000.

The previous prime is 31424329999. The next prime is 31424330009. The reversal of 31424330000 is 3342413.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (31424330009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1176797 + ... + 1203203.

Almost surely, 2^31424330000 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 31424330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46034214336).

31424330000 is an abundant number, since it is smaller than the sum of its proper divisors (60644098672).

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

31424330000 is a wasteful number, since it uses less digits than its factorization.

31424330000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26459 (or 26438 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31424330000 its reverse (3342413), we get a palindrome (31427672413).

The spelling of 31424330000 in words is "thirty-one billion, four hundred twenty-four million, three hundred thirty thousand".