201302312011 has 4 divisors (see below), whose sum is σ = 201306961024. Its totient is φ = 201297663000.

The previous prime is 201302311979. The next prime is 201302312021. The reversal of 201302312011 is 110213203102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110213203102 = 2 ⋅55106601551.

It is a cyclic number.

It is not a de Polignac number, because 201302312011 - 2⁵ = 201302311979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201302312021) 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, 2258940 + ... + 2346361.

It is an arithmetic number, because the mean of its divisors is an integer number (50326740256).

Almost surely, 2^201302312011 is an apocalyptic number.

201302312011 is a deficient number, since it is larger than the sum of its proper divisors (4649013).

201302312011 is an equidigital number, since it uses as much as digits as its factorization.

201302312011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4649012.

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

Adding to 201302312011 its reverse (110213203102), we get a palindrome (311515515113).

The spelling of 201302312011 in words is "two hundred one billion, three hundred two million, three hundred twelve thousand, eleven".