31330103000 has 128 divisors (see below), whose sum is σ = 83865300480. Its totient is φ = 10731542400.

The previous prime is 31330102987. The next prime is 31330103003. The reversal of 31330103000 is 30103313.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31330103003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13347827 + ... + 13350173.

It is an arithmetic number, because the mean of its divisors is an integer number (655197660).

Almost surely, 2^31330103000 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 31330103000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41932650240).

31330103000 is an abundant number, since it is smaller than the sum of its proper divisors (52535197480).

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

31330103000 is a wasteful number, since it uses less digits than its factorization.

31330103000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282 (or 4268 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 14.

Adding to 31330103000 its reverse (30103313), we get a palindrome (31360206313).

The spelling of 31330103000 in words is "thirty-one billion, three hundred thirty million, one hundred three thousand".