231434101121 has 4 divisors (see below), whose sum is σ = 231435423744. Its totient is φ = 231432778500.

The previous prime is 231434101111. The next prime is 231434101123. The reversal of 231434101121 is 121101434132.

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-231434101121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231434101123) 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, 349985 + ... + 765086.

It is an arithmetic number, because the mean of its divisors is an integer number (57858855936).

Almost surely, 2^231434101121 is an apocalyptic number.

It is an amenable number.

231434101121 is a deficient number, since it is larger than the sum of its proper divisors (1322623).

231434101121 is a wasteful number, since it uses less digits than its factorization.

231434101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322622.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 231434101121 its reverse (121101434132), we get a palindrome (352535535253).

The spelling of 231434101121 in words is "two hundred thirty-one billion, four hundred thirty-four million, one hundred one thousand, one hundred twenty-one".