131201033 has 4 divisors (see below), whose sum is σ = 132234240. Its totient is φ = 130167828.

The previous prime is 131201029. The next prime is 131201101. The reversal of 131201033 is 330102131.

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 131201033 - 2² = 131201029 is a prime.

It is a super-2 number, since 2×131201033² = 34427422120534178, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131200999 and 131201017.

It is not an unprimeable number, because it can be changed into a prime (131201533) 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, 516413 + ... + 516666.

It is an arithmetic number, because the mean of its divisors is an integer number (33058560).

Almost surely, 2^131201033 is an apocalyptic number.

It is an amenable number.

131201033 is a deficient number, since it is larger than the sum of its proper divisors (1033207).

131201033 is a wasteful number, since it uses less digits than its factorization.

131201033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033206.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131201033 is about 11454.3019429383. The cubic root of 131201033 is about 508.1349706981.

Adding to 131201033 its reverse (330102131), we get a palindrome (461303164).

The spelling of 131201033 in words is "one hundred thirty-one million, two hundred one thousand, thirty-three".