231234134211 has 8 divisors (see below), whose sum is σ = 342569087760. Its totient is φ = 154156089456.

The previous prime is 231234134137. The next prime is 231234134221. The reversal of 231234134211 is 112431432132.

231234134211 is a `hidden beast` number, since 2 + 3 + 1 + 234 + 1 + 3 + 421 + 1 = 666.

It is not a de Polignac number, because 231234134211 - 2¹¹ = 231234132163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8564227193 = 231234134211 / (2 + 3 + 1 + 2 + 3 + 4 + 1 + 3 + 4 + 2 + 1 + 1).

It is not an unprimeable number, because it can be changed into a prime (231234134221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4282113570 + ... + 4282113623.

It is an arithmetic number, because the mean of its divisors is an integer number (42821135970).

Almost surely, 2^231234134211 is an apocalyptic number.

231234134211 is a deficient number, since it is larger than the sum of its proper divisors (111334953549).

231234134211 is an equidigital number, since it uses as much as digits as its factorization.

231234134211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8564227202 (or 8564227196 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 231234134211 its reverse (112431432132), we get a palindrome (343665566343).

The spelling of 231234134211 in words is "two hundred thirty-one billion, two hundred thirty-four million, one hundred thirty-four thousand, two hundred eleven".