131303111020221 has 8 divisors (see below), whose sum is σ = 200080931078464. Its totient is φ = 75030349154400.

The previous prime is 131303111020219. The next prime is 131303111020223. The reversal of 131303111020221 is 122020111303131.

It is an interprime number because it is at equal distance from previous prime (131303111020219) and next prime (131303111020223).

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

It is not a de Polignac number, because 131303111020221 - 2¹ = 131303111020219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6252529096201 = 131303111020221 / (1 + 3 + 1 + 3 + 0 + 3 + 1 + 1 + 1 + 0 + 2 + 0 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131303111020223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3126264548080 + ... + 3126264548121.

It is an arithmetic number, because the mean of its divisors is an integer number (25010116384808).

Almost surely, 2^{131303111020221} is an apocalyptic number.

It is an amenable number.

131303111020221 is a deficient number, since it is larger than the sum of its proper divisors (68777820058243).

131303111020221 is an equidigital number, since it uses as much as digits as its factorization.

131303111020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6252529096211.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 131303111020221 its reverse (122020111303131), we get a palindrome (253323222323352).

The spelling of 131303111020221 in words is "one hundred thirty-one trillion, three hundred three billion, one hundred eleven million, twenty thousand, two hundred twenty-one".