133231043 has 12 divisors (see below), whose sum is σ = 150407040. Its totient is φ = 117841680.

The previous prime is 133231013. The next prime is 133231073. The reversal of 133231043 is 340132331.

It is an interprime number because it is at equal distance from previous prime (133231013) and next prime (133231073).

It is not a de Polignac number, because 133231043 - 2⁸ = 133230787 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (133231013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10403 + ... + 19356.

It is an arithmetic number, because the mean of its divisors is an integer number (12533920).

Almost surely, 2^133231043 is an apocalyptic number.

133231043 is a deficient number, since it is larger than the sum of its proper divisors (17175997).

133231043 is a wasteful number, since it uses less digits than its factorization.

133231043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29818 (or 29807 counting only the distinct ones).

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

The square root of 133231043 is about 11542.5752325900. The cubic root of 133231043 is about 510.7422780938.

Adding to 133231043 its reverse (340132331), we get a palindrome (473363374).

The spelling of 133231043 in words is "one hundred thirty-three million, two hundred thirty-one thousand, forty-three".