201001312320004 has 24 divisors (see below), whose sum is σ = 402004152970560. Its totient is φ = 86143092066336.

The previous prime is 201001312319993. The next prime is 201001312320007. The reversal of 201001312320004 is 400023213100102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (201001312320007) 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, 6075667 + ... + 20950330.

It is an arithmetic number, because the mean of its divisors is an integer number (16750173040440).

Almost surely, 2^{201001312320004} is an apocalyptic number.

It is an amenable number.

201001312320004 is an abundant number, since it is smaller than the sum of its proper divisors (201002840650556).

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

201001312320004 is a wasteful number, since it uses less digits than its factorization.

201001312320004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27291627 (or 27291625 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201001312320004 its reverse (400023213100102), we get a palindrome (601024525420106).

The spelling of 201001312320004 in words is "two hundred one trillion, one billion, three hundred twelve million, three hundred twenty thousand, four".