31403234000 has 80 divisors (see below), whose sum is σ = 79234571520. Its totient is φ = 12015132800.

The previous prime is 31403233999. The next prime is 31403234047. The reversal of 31403234000 is 43230413.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295340 + ... + 387339.

It is an arithmetic number, because the mean of its divisors is an integer number (990432144).

Almost surely, 2^31403234000 is an apocalyptic number.

It is an amenable number.

31403234000 is an abundant number, since it is smaller than the sum of its proper divisors (47831337520).

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

31403234000 is a wasteful number, since it uses less digits than its factorization.

31403234000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682725 (or 682709 counting only the distinct ones).

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

Adding to 31403234000 its reverse (43230413), we get a palindrome (31446464413).

The spelling of 31403234000 in words is "thirty-one billion, four hundred three million, two hundred thirty-four thousand".