2001131405004 has 24 divisors (see below), whose sum is σ = 4670972514880. Its totient is φ = 666805815504.

The previous prime is 2001131404999. The next prime is 2001131405023. The reversal of 2001131405004 is 4005041311002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29713234 + ... + 29780505.

Almost surely, 2^{2001131405004} is an apocalyptic number.

It is an amenable number.

2001131405004 is an abundant number, since it is smaller than the sum of its proper divisors (2669841109876).

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

2001131405004 is a wasteful number, since it uses less digits than its factorization.

2001131405004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59496549 (or 59496547 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 2001131405004 its reverse (4005041311002), we get a palindrome (6006172716006).

The spelling of 2001131405004 in words is "two trillion, one billion, one hundred thirty-one million, four hundred five thousand, four".