211201020131 has 4 divisors (see below), whose sum is σ = 211809668952. Its totient is φ = 210592371312.

The previous prime is 211201020119. The next prime is 211201020161. The reversal of 211201020131 is 131020102112.

211201020131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 211201020131 - 2⁶ = 211201020067 is a prime.

It is a super-2 number, since 2×211201020131² (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 (211201020161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304323890 + ... + 304324583.

It is an arithmetic number, because the mean of its divisors is an integer number (52952417238).

Almost surely, 2^211201020131 is an apocalyptic number.

211201020131 is a deficient number, since it is larger than the sum of its proper divisors (608648821).

211201020131 is an equidigital number, since it uses as much as digits as its factorization.

211201020131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608648820.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 211201020131 its reverse (131020102112), we get a palindrome (342221122243).

The spelling of 211201020131 in words is "two hundred eleven billion, two hundred one million, twenty thousand, one hundred thirty-one".