131022133 has 4 divisors (see below), whose sum is σ = 142933248. Its totient is φ = 119111020.

The previous prime is 131022127. The next prime is 131022137. The reversal of 131022133 is 331220131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 331220131 = 11 ⋅30110921.

It is a cyclic number.

It is not a de Polignac number, because 131022133 - 2⁹ = 131021621 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 (131022137) 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, 5955541 + ... + 5955562.

It is an arithmetic number, because the mean of its divisors is an integer number (35733312).

Almost surely, 2^131022133 is an apocalyptic number.

It is an amenable number.

131022133 is a deficient number, since it is larger than the sum of its proper divisors (11911115).

131022133 is a wasteful number, since it uses less digits than its factorization.

131022133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11911114.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131022133 is about 11446.4899860175. The cubic root of 131022133 is about 507.9039087578.

Adding to 131022133 its reverse (331220131), we get a palindrome (462242264).

The spelling of 131022133 in words is "one hundred thirty-one million, twenty-two thousand, one hundred thirty-three".