201011112100031 has 4 divisors (see below), whose sum is σ = 202342311518064. Its totient is φ = 199679912682000.

The previous prime is 201011112099899. The next prime is 201011112100103. The reversal of 201011112100031 is 130001211110102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201011112100031 - 2³⁸ = 200736234193087 is a prime.

It is a super-2 number, since 2×201011112100031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201011112099979 and 201011112100015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011112106031) 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, 665599708790 + ... + 665599709091.

It is an arithmetic number, because the mean of its divisors is an integer number (50585577879516).

Almost surely, 2^{201011112100031} is an apocalyptic number.

201011112100031 is a deficient number, since it is larger than the sum of its proper divisors (1331199418033).

201011112100031 is a wasteful number, since it uses less digits than its factorization.

201011112100031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331199418032.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 201011112100031 its reverse (130001211110102), we get a palindrome (331012323210133).

The spelling of 201011112100031 in words is "two hundred one trillion, eleven billion, one hundred twelve million, one hundred thousand, thirty-one".