231302212211 has 32 divisors (see below), whose sum is σ = 288380227968. Its totient is φ = 180992655360.

The previous prime is 231302212171. The next prime is 231302212243. The reversal of 231302212211 is 112212203132.

It is not a de Polignac number, because 231302212211 - 2¹⁰ = 231302211187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231302211211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 707051 + ... + 981083.

It is an arithmetic number, because the mean of its divisors is an integer number (9011882124).

Almost surely, 2^231302212211 is an apocalyptic number.

231302212211 is a deficient number, since it is larger than the sum of its proper divisors (57078015757).

231302212211 is a wasteful number, since it uses less digits than its factorization.

231302212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274271.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 231302212211 its reverse (112212203132), we get a palindrome (343514415343).

The spelling of 231302212211 in words is "two hundred thirty-one billion, three hundred two million, two hundred twelve thousand, two hundred eleven".