7131323000 has 32 divisors (see below), whose sum is σ = 16687298160. Its totient is φ = 2852528800.

The previous prime is 7131322997. The next prime is 7131323009. The reversal of 7131323000 is 3231317.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7131323009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3564662 + ... + 3566661.

Almost surely, 2^7131323000 is an apocalyptic number.

It is an amenable number.

7131323000 is an abundant number, since it is smaller than the sum of its proper divisors (9555975160).

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

7131323000 is a wasteful number, since it uses less digits than its factorization.

7131323000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7131344 (or 7131330 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 7131323000 is about 84447.1609943164. The cubic root of 7131323000 is about 1924.8196154131.

Adding to 7131323000 its reverse (3231317), we get a palindrome (7134554317).

The spelling of 7131323000 in words is "seven billion, one hundred thirty-one million, three hundred twenty-three thousand".