131123426 has 32 divisors (see below), whose sum is σ = 231813120. Its totient is φ = 54459216.

The previous prime is 131123423. The next prime is 131123441. The reversal of 131123426 is 624321131.

It is not an unprimeable number, because it can be changed into a prime (131123423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82895 + ... + 84461.

It is an arithmetic number, because the mean of its divisors is an integer number (7244160).

Almost surely, 2^131123426 is an apocalyptic number.

131123426 is a deficient number, since it is larger than the sum of its proper divisors (100689694).

131123426 is a wasteful number, since it uses less digits than its factorization.

131123426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758.

The product of its digits is 864, while the sum is 23.

The square root of 131123426 is about 11450.9137626654. The cubic root of 131123426 is about 508.0347616075.

Adding to 131123426 its reverse (624321131), we get a palindrome (755444557).

The spelling of 131123426 in words is "one hundred thirty-one million, one hundred twenty-three thousand, four hundred twenty-six".