131430233 has 8 divisors (see below), whose sum is σ = 148322880. Its totient is φ = 115361680.

The previous prime is 131430217. The next prime is 131430287. The reversal of 131430233 is 332034131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131430233 - 2⁴ = 131430217 is a prime.

It is a super-2 number, since 2×131430233² = 34547812292868578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131430203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205685 + ... + 206322.

It is an arithmetic number, because the mean of its divisors is an integer number (18540360).

Almost surely, 2^131430233 is an apocalyptic number.

It is an amenable number.

131430233 is a deficient number, since it is larger than the sum of its proper divisors (16892647).

131430233 is a wasteful number, since it uses less digits than its factorization.

131430233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412047.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 131430233 is about 11464.3025518345. The cubic root of 131430233 is about 508.4306919019.

Adding to 131430233 its reverse (332034131), we get a palindrome (463464364).

The spelling of 131430233 in words is "one hundred thirty-one million, four hundred thirty thousand, two hundred thirty-three".