131302221000 has 64 divisors (see below), whose sum is σ = 409662938880. Its totient is φ = 35013924800.

The previous prime is 131302220983. The next prime is 131302221013. The reversal of 131302221000 is 122203131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21880704 + ... + 21886703.

It is an arithmetic number, because the mean of its divisors is an integer number (6400983420).

Almost surely, 2^131302221000 is an apocalyptic number.

131302221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131302221000 is an abundant number, since it is smaller than the sum of its proper divisors (278360717880).

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

131302221000 is a wasteful number, since it uses less digits than its factorization.

131302221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43767431 (or 43767417 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 131302221000 its reverse (122203131), we get a palindrome (131424424131).

The spelling of 131302221000 in words is "one hundred thirty-one billion, three hundred two million, two hundred twenty-one thousand".