231222311101 has 4 divisors (see below), whose sum is σ = 231455634304. Its totient is φ = 230988987900.

The previous prime is 231222311077. The next prime is 231222311167. The reversal of 231222311101 is 101113222132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231222311101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231222311171) 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, 116660115 + ... + 116662096.

It is an arithmetic number, because the mean of its divisors is an integer number (57863908576).

Almost surely, 2^231222311101 is an apocalyptic number.

It is an amenable number.

231222311101 is a deficient number, since it is larger than the sum of its proper divisors (233323203).

231222311101 is an equidigital number, since it uses as much as digits as its factorization.

231222311101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233323202.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 231222311101 its reverse (101113222132), we get a palindrome (332335533233).

The spelling of 231222311101 in words is "two hundred thirty-one billion, two hundred twenty-two million, three hundred eleven thousand, one hundred one".