131023333 has 4 divisors (see below), whose sum is σ = 149740960. Its totient is φ = 112305708.

The previous prime is 131023309. The next prime is 131023339. The reversal of 131023333 is 333320131.

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 131023333 - 2⁹ = 131022821 is a prime.

It is a super-2 number, since 2×131023333² = 34334227580857778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131023333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131023339) 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, 9358803 + ... + 9358816.

It is an arithmetic number, because the mean of its divisors is an integer number (37435240).

Almost surely, 2^131023333 is an apocalyptic number.

It is an amenable number.

131023333 is a deficient number, since it is larger than the sum of its proper divisors (18717627).

131023333 is an equidigital number, since it uses as much as digits as its factorization.

131023333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18717626.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 131023333 is about 11446.5424037130. The cubic root of 131023333 is about 507.9054593427.

Adding to 131023333 its reverse (333320131), we get a palindrome (464343464).

The spelling of 131023333 in words is "one hundred thirty-one million, twenty-three thousand, three hundred thirty-three".