111231001001230 has 16 divisors (see below), whose sum is σ = 218417238329904. Its totient is φ = 40447636727680.

The previous prime is 111231001001209. The next prime is 111231001001269. The reversal of 111231001001230 is 32100100132111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505595458987 + ... + 505595459206.

It is an arithmetic number, because the mean of its divisors is an integer number (13651077395619).

Almost surely, 2^{111231001001230} is an apocalyptic number.

111231001001230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111231001001230 is a deficient number, since it is larger than the sum of its proper divisors (107186237328674).

111231001001230 is a wasteful number, since it uses less digits than its factorization.

111231001001230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011190918211.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111231001001230 its reverse (32100100132111), we get a palindrome (143331101133341).

The spelling of 111231001001230 in words is "one hundred eleven trillion, two hundred thirty-one billion, one million, one thousand, two hundred thirty".