131011004 has 24 divisors (see below), whose sum is σ = 243196800. Its totient is φ = 61579440.

The previous prime is 131011003. The next prime is 131011019. The reversal of 131011004 is 400110131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131011003) 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, 3377 + ... + 16535.

It is an arithmetic number, because the mean of its divisors is an integer number (10133200).

Almost surely, 2^131011004 is an apocalyptic number.

It is an amenable number.

131011004 is a deficient number, since it is larger than the sum of its proper divisors (112185796).

131011004 is a wasteful number, since it uses less digits than its factorization.

131011004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13313 (or 13311 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 131011004 is about 11446.0038441370. The cubic root of 131011004 is about 507.8895279237.

Adding to 131011004 its reverse (400110131), we get a palindrome (531121135).

The spelling of 131011004 in words is "one hundred thirty-one million, eleven thousand, four".