231000111111001 has 8 divisors (see below), whose sum is σ = 234489450490560. Its totient is φ = 227511994570608.

The previous prime is 231000111110959. The next prime is 231000111111013. The reversal of 231000111111001 is 100111111000132.

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 231000111111001 - 2¹¹ = 231000111108953 is a prime.

It is a super-2 number, since 2×231000111111001² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231000111111041) 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, 305329126 + ... + 306084751.

It is an arithmetic number, because the mean of its divisors is an integer number (29311181311320).

Almost surely, 2^{231000111111001} is an apocalyptic number.

It is an amenable number.

231000111111001 is a deficient number, since it is larger than the sum of its proper divisors (3489339379559).

231000111111001 is an equidigital number, since it uses as much as digits as its factorization.

231000111111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611419583.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 231000111111001 its reverse (100111111000132), we get a palindrome (331111222111133).

The spelling of 231000111111001 in words is "two hundred thirty-one trillion, one hundred eleven million, one hundred eleven thousand, one".