201002112331 has 4 divisors (see below), whose sum is σ = 201026086632. Its totient is φ = 200978138032.

The previous prime is 201002112323. The next prime is 201002112343. The reversal of 201002112331 is 133211200102.

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 201002112331 - 2³ = 201002112323 is a prime.

It is a super-2 number, since 2×201002112331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201002112361) 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, 11974570 + ... + 11991343.

It is an arithmetic number, because the mean of its divisors is an integer number (50256521658).

Almost surely, 2^201002112331 is an apocalyptic number.

201002112331 is a deficient number, since it is larger than the sum of its proper divisors (23974301).

201002112331 is an equidigital number, since it uses as much as digits as its factorization.

201002112331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23974300.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 201002112331 its reverse (133211200102), we get a palindrome (334213312433).

The spelling of 201002112331 in words is "two hundred one billion, two million, one hundred twelve thousand, three hundred thirty-one".