231001231121 has 8 divisors (see below), whose sum is σ = 246090091104. Its totient is φ = 216079099200.

The previous prime is 231001231103. The next prime is 231001231133. The reversal of 231001231121 is 121132100132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231001231121 - 2¹⁴ = 231001214737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 231001231121.

It is not an unprimeable number, because it can be changed into a prime (231001531121) 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, 41679155 + ... + 41684696.

It is an arithmetic number, because the mean of its divisors is an integer number (30761261388).

Almost surely, 2^231001231121 is an apocalyptic number.

It is an amenable number.

231001231121 is a deficient number, since it is larger than the sum of its proper divisors (15088859983).

231001231121 is a wasteful number, since it uses less digits than its factorization.

231001231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83364031.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 231001231121 its reverse (121132100132), we get a palindrome (352133331253).

The spelling of 231001231121 in words is "two hundred thirty-one billion, one million, two hundred thirty-one thousand, one hundred twenty-one".