211201010131 has 4 divisors (see below), whose sum is σ = 211217866200. Its totient is φ = 211184154064.

The previous prime is 211201010123. The next prime is 211201010171. The reversal of 211201010131 is 131010102112.

It is a happy number.

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 211201010131 - 2³ = 211201010123 is a prime.

It is a super-2 number, since 2×211201010131² (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 (211201010171) 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, 8409226 + ... + 8434303.

It is an arithmetic number, because the mean of its divisors is an integer number (52804466550).

Almost surely, 2^211201010131 is an apocalyptic number.

211201010131 is a deficient number, since it is larger than the sum of its proper divisors (16856069).

211201010131 is a wasteful number, since it uses less digits than its factorization.

211201010131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16856068.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 211201010131 its reverse (131010102112), we get a palindrome (342211112243).

The spelling of 211201010131 in words is "two hundred eleven billion, two hundred one million, ten thousand, one hundred thirty-one".