2001312013101 has 32 divisors (see below), whose sum is σ = 2815365600000. Its totient is φ = 1262096867328.

The previous prime is 2001312013081. The next prime is 2001312013133. The reversal of 2001312013101 is 1013102131002.

It is a happy number.

It is not a de Polignac number, because 2001312013101 - 2²¹ = 2001309915949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001312013171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1929325 + ... + 2779373.

It is an arithmetic number, because the mean of its divisors is an integer number (87980175000).

Almost surely, 2^{2001312013101} is an apocalyptic number.

It is an amenable number.

2001312013101 is a deficient number, since it is larger than the sum of its proper divisors (814053586899).

2001312013101 is a wasteful number, since it uses less digits than its factorization.

2001312013101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850453.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 2001312013101 its reverse (1013102131002), we get a palindrome (3014414144103).

The spelling of 2001312013101 in words is "two trillion, one billion, three hundred twelve million, thirteen thousand, one hundred one".