131321221310 has 8 divisors (see below), whose sum is σ = 236378198376. Its totient is φ = 52528488520.

The previous prime is 131321221309. The next prime is 131321221321. The reversal of 131321221310 is 13122123131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×131321221310² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6566061056 + ... + 6566061075.

It is an arithmetic number, because the mean of its divisors is an integer number (29547274797).

Almost surely, 2^131321221310 is an apocalyptic number.

131321221310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131321221310 is a deficient number, since it is larger than the sum of its proper divisors (105056977066).

131321221310 is a wasteful number, since it uses less digits than its factorization.

131321221310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13132122138.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 131321221310 its reverse (13122123131), we get a palindrome (144443344441).

The spelling of 131321221310 in words is "one hundred thirty-one billion, three hundred twenty-one million, two hundred twenty-one thousand, three hundred ten".