131321211000 has 128 divisors (see below), whose sum is σ = 468253992960. Its totient is φ = 30016272000.

The previous prime is 131321210869. The next prime is 131321211013. The reversal of 131321211000 is 112123131.

It is a happy number.

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

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 31 ways as a sum of consecutive naturals, for example, 3105696 + ... + 3147695.

It is an arithmetic number, because the mean of its divisors is an integer number (3658234320).

Almost surely, 2^131321211000 is an apocalyptic number.

131321211000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131321211000 is an abundant number, since it is smaller than the sum of its proper divisors (336932781960).

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

131321211000 is a wasteful number, since it uses less digits than its factorization.

131321211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6253422 (or 6253408 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 131321211000 its reverse (112123131), we get a palindrome (131433334131).

The spelling of 131321211000 in words is "one hundred thirty-one billion, three hundred twenty-one million, two hundred eleven thousand".