131040040004 has 12 divisors (see below), whose sum is σ = 229536213228. Its totient is φ = 65458264800.

The previous prime is 131040039929. The next prime is 131040040007. The reversal of 131040040004 is 400040040131.

It can be written as a sum of positive squares in 2 ways, for example, as 73441000000 + 57599040004 = 271000^2 + 239998^2 .

It is not an unprimeable number, because it can be changed into a prime (131040040007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15434027 + ... + 15442514.

It is an arithmetic number, because the mean of its divisors is an integer number (19128017769).

Almost surely, 2^131040040004 is an apocalyptic number.

It is an amenable number.

131040040004 is a deficient number, since it is larger than the sum of its proper divisors (98496173224).

131040040004 is a wasteful number, since it uses less digits than its factorization.

131040040004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30877606 (or 30877604 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 131040040004 its reverse (400040040131), we get a palindrome (531080080135).

The spelling of 131040040004 in words is "one hundred thirty-one billion, forty million, forty thousand, four".