131333101 has 4 divisors (see below), whose sum is σ = 131356512. Its totient is φ = 131309692.

The previous prime is 131333089. The next prime is 131333131. The reversal of 131333101 is 101333131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131333101 - 2¹⁹ = 130808813 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 (131333131) 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, 2280 + ... + 16366.

It is an arithmetic number, because the mean of its divisors is an integer number (32839128).

Almost surely, 2^131333101 is an apocalyptic number.

It is an amenable number.

131333101 is a deficient number, since it is larger than the sum of its proper divisors (23411).

131333101 is an equidigital number, since it uses as much as digits as its factorization.

131333101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23410.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 131333101 is about 11460.0654884691. The cubic root of 131333101 is about 508.3054110854.

Adding to 131333101 its reverse (101333131), we get a palindrome (232666232).

The spelling of 131333101 in words is "one hundred thirty-one million, three hundred thirty-three thousand, one hundred one".