231102231121 has 4 divisors (see below), whose sum is σ = 231283205172. Its totient is φ = 230921257072.

The previous prime is 231102231083. The next prime is 231102231127. The reversal of 231102231121 is 121132201132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111081557521 + 120020673600 = 333289^2 + 346440^2 .

It is a cyclic number.

It is not a de Polignac number, because 231102231121 - 2⁷ = 231102230993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231102231127) 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, 90485110 + ... + 90487663.

It is an arithmetic number, because the mean of its divisors is an integer number (57820801293).

Almost surely, 2^231102231121 is an apocalyptic number.

It is an amenable number.

231102231121 is a deficient number, since it is larger than the sum of its proper divisors (180974051).

231102231121 is a wasteful number, since it uses less digits than its factorization.

231102231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180974050.

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

Adding to 231102231121 its reverse (121132201132), we get a palindrome (352234432253).

The spelling of 231102231121 in words is "two hundred thirty-one billion, one hundred two million, two hundred thirty-one thousand, one hundred twenty-one".