131234011 has 4 divisors (see below), whose sum is σ = 134026272. Its totient is φ = 128441752.

The previous prime is 131234009. The next prime is 131234027. The reversal of 131234011 is 110432131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131234011 - 2¹ = 131234009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131234041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1396060 + ... + 1396153.

It is an arithmetic number, because the mean of its divisors is an integer number (33506568).

Almost surely, 2^131234011 is an apocalyptic number.

131234011 is a deficient number, since it is larger than the sum of its proper divisors (2792261).

131234011 is an equidigital number, since it uses as much as digits as its factorization.

131234011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792260.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 131234011 is about 11455.7413989667. The cubic root of 131234011 is about 508.1775411740.

Adding to 131234011 its reverse (110432131), we get a palindrome (241666142).

The spelling of 131234011 in words is "one hundred thirty-one million, two hundred thirty-four thousand, eleven".