10031321340 has 96 divisors (see below), whose sum is σ = 31338457920. Its totient is φ = 2663884800.

The previous prime is 10031321327. The next prime is 10031321347. The reversal of 10031321340 is 4312313001.

10031321340 is a `hidden beast` number, since 1 + 0 + 0 + 3 + 1 + 321 + 340 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031321347) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 91600 + ... + 168680.

It is an arithmetic number, because the mean of its divisors is an integer number (326442270).

Almost surely, 2^10031321340 is an apocalyptic number.

10031321340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10031321340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15669228960).

10031321340 is an abundant number, since it is smaller than the sum of its proper divisors (21307136580).

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

10031321340 is a wasteful number, since it uses less digits than its factorization.

10031321340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77340 (or 77332 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10031321340 its reverse (4312313001), we get a palindrome (14343634341).

The spelling of 10031321340 in words is "ten billion, thirty-one million, three hundred twenty-one thousand, three hundred forty".