131331223001 has 16 divisors (see below), whose sum is σ = 146838182400. Its totient is φ = 116421801600.

The previous prime is 131331222947. The next prime is 131331223033. The reversal of 131331223001 is 100322133131.

It is a cyclic number.

It is not a de Polignac number, because 131331223001 - 2²² = 131327028697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131331223061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 843320 + ... + 986838.

It is an arithmetic number, because the mean of its divisors is an integer number (9177386400).

Almost surely, 2^131331223001 is an apocalyptic number.

131331223001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131331223001 is a deficient number, since it is larger than the sum of its proper divisors (15506959399).

131331223001 is a wasteful number, since it uses less digits than its factorization.

131331223001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145600.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131331223001 its reverse (100322133131), we get a palindrome (231653356132).

The spelling of 131331223001 in words is "one hundred thirty-one billion, three hundred thirty-one million, two hundred twenty-three thousand, one".