131333222021 has 8 divisors (see below), whose sum is σ = 131645159424. Its totient is φ = 131021407440.

The previous prime is 131333221961. The next prime is 131333222051. The reversal of 131333222021 is 120222333131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131333222021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131333222051) 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, 2322716 + ... + 2378586.

It is an arithmetic number, because the mean of its divisors is an integer number (16455644928).

Almost surely, 2^131333222021 is an apocalyptic number.

It is an amenable number.

131333222021 is a deficient number, since it is larger than the sum of its proper divisors (311937403).

131333222021 is an equidigital number, since it uses as much as digits as its factorization.

131333222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61411.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 131333222021 its reverse (120222333131), we get a palindrome (251555555152).

The spelling of 131333222021 in words is "one hundred thirty-one billion, three hundred thirty-three million, two hundred twenty-two thousand, twenty-one".