211131430041 has 16 divisors (see below), whose sum is σ = 323854711808. Its totient is φ = 119847546000.

The previous prime is 211131430033. The next prime is 211131430043. The reversal of 211131430041 is 140034131112.

It is not a de Polignac number, because 211131430041 - 2³ = 211131430033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211131430043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33287815 + ... + 33294156.

It is an arithmetic number, because the mean of its divisors is an integer number (20240919488).

Almost surely, 2^211131430041 is an apocalyptic number.

211131430041 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

211131430041 is a deficient number, since it is larger than the sum of its proper divisors (112723281767).

211131430041 is a wasteful number, since it uses less digits than its factorization.

211131430041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66582132.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 211131430041 its reverse (140034131112), we get a palindrome (351165561153).

The spelling of 211131430041 in words is "two hundred eleven billion, one hundred thirty-one million, four hundred thirty thousand, forty-one".