131123004 has 12 divisors (see below), whose sum is σ = 305953704. Its totient is φ = 43707664.

The previous prime is 131122969. The next prime is 131123029. The reversal of 131123004 is 400321131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5463447 + ... + 5463470.

It is an arithmetic number, because the mean of its divisors is an integer number (25496142).

Almost surely, 2^131123004 is an apocalyptic number.

It is an amenable number.

131123004 is an abundant number, since it is smaller than the sum of its proper divisors (174830700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131123004 is a wasteful number, since it uses less digits than its factorization.

131123004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10926924 (or 10926922 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 131123004 is about 11450.8953361735. The cubic root of 131123004 is about 508.0342165970.

Adding to 131123004 its reverse (400321131), we get a palindrome (531444135).

The spelling of 131123004 in words is "one hundred thirty-one million, one hundred twenty-three thousand, four".