131320221330 has 32 divisors (see below), whose sum is σ = 315181425024. Its totient is φ = 35017293056.

The previous prime is 131320221323. The next prime is 131320221341. The reversal of 131320221330 is 33122023131.

It is a junction number, because it is equal to n+sod(n) for n = 131320221297 and 131320221306.

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 15 ways as a sum of consecutive naturals, for example, 801274 + ... + 951146.

It is an arithmetic number, because the mean of its divisors is an integer number (9849419532).

Almost surely, 2^131320221330 is an apocalyptic number.

131320221330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131320221330 is an abundant number, since it is smaller than the sum of its proper divisors (183861203694).

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

131320221330 is a wasteful number, since it uses less digits than its factorization.

131320221330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179090.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 131320221330 its reverse (33122023131), we get a palindrome (164442244461).

The spelling of 131320221330 in words is "one hundred thirty-one billion, three hundred twenty million, two hundred twenty-one thousand, three hundred thirty".