201131114021 has 4 divisors (see below), whose sum is σ = 201595620492. Its totient is φ = 200666607552.

The previous prime is 201131114011. The next prime is 201131114027. The reversal of 201131114021 is 120411131102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 47039536996 + 154091577025 = 216886^2 + 392545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201131114021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201131114027) 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, 232252586 + ... + 232253451.

It is an arithmetic number, because the mean of its divisors is an integer number (50398905123).

Almost surely, 2^201131114021 is an apocalyptic number.

It is an amenable number.

201131114021 is a deficient number, since it is larger than the sum of its proper divisors (464506471).

201131114021 is an equidigital number, since it uses as much as digits as its factorization.

201131114021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464506470.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 201131114021 its reverse (120411131102), we get a palindrome (321542245123).

The spelling of 201131114021 in words is "two hundred one billion, one hundred thirty-one million, one hundred fourteen thousand, twenty-one".