131011001004 has 48 divisors (see below), whose sum is σ = 331178496768. Its totient is φ = 40069685568.

The previous prime is 131011000969. The next prime is 131011001021. The reversal of 131011001004 is 400100110131.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2488362 + ... + 2540465.

It is an arithmetic number, because the mean of its divisors is an integer number (6899552016).

Almost surely, 2^131011001004 is an apocalyptic number.

It is an amenable number.

131011001004 is an abundant number, since it is smaller than the sum of its proper divisors (200167495764).

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

131011001004 is a wasteful number, since it uses less digits than its factorization.

131011001004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029014 (or 5029012 counting only the distinct ones).

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

Adding to 131011001004 its reverse (400100110131), we get a palindrome (531111111135).

The spelling of 131011001004 in words is "one hundred thirty-one billion, eleven million, one thousand, four".