201201213131 has 2 divisors, whose sum is σ = 201201213132. Its totient is φ = 201201213130.

The previous prime is 201201213091. The next prime is 201201213137. The reversal of 201201213131 is 131312102102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201201213131 - 2³⁰ = 200127471307 is a prime.

It is a super-2 number, since 2×201201213131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201201213137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100600606565 + 100600606566.

It is an arithmetic number, because the mean of its divisors is an integer number (100600606566).

Almost surely, 2^201201213131 is an apocalyptic number.

201201213131 is a deficient number, since it is larger than the sum of its proper divisors (1).

201201213131 is an equidigital number, since it uses as much as digits as its factorization.

201201213131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201201213131 its reverse (131312102102), we get a palindrome (332513315233).

The spelling of 201201213131 in words is "two hundred one billion, two hundred one million, two hundred thirteen thousand, one hundred thirty-one".