131220032303 has 4 divisors (see below), whose sum is σ = 131322309528. Its totient is φ = 131117755080.

The previous prime is 131220032269. The next prime is 131220032309. The reversal of 131220032303 is 303230022131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303230022131 = 19 ⋅15959474849.

It is a cyclic number.

It is not a de Polignac number, because 131220032303 - 2¹⁴ = 131220015919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131220032309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51136688 + ... + 51139253.

It is an arithmetic number, because the mean of its divisors is an integer number (32830577382).

Almost surely, 2^131220032303 is an apocalyptic number.

131220032303 is a deficient number, since it is larger than the sum of its proper divisors (102277225).

131220032303 is a wasteful number, since it uses less digits than its factorization.

131220032303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102277224.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 131220032303 its reverse (303230022131), we get a palindrome (434450054434).

The spelling of 131220032303 in words is "one hundred thirty-one billion, two hundred twenty million, thirty-two thousand, three hundred three".