111311030123121 has 8 divisors (see below), whose sum is σ = 148420182082464. Its totient is φ = 74204615789600.

The previous prime is 111311030123081. The next prime is 111311030123123. The reversal of 111311030123121 is 121321030113111.

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 111311030123121 - 2⁷ = 111311030122993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111311030123123) 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, 684311580 + ... + 684474221.

It is an arithmetic number, because the mean of its divisors is an integer number (18552522760308).

Almost surely, 2^{111311030123121} is an apocalyptic number.

It is an amenable number.

111311030123121 is a deficient number, since it is larger than the sum of its proper divisors (37109151959343).

111311030123121 is a wasteful number, since it uses less digits than its factorization.

111311030123121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368812911.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 111311030123121 its reverse (121321030113111), we get a palindrome (232632060236232).

The spelling of 111311030123121 in words is "one hundred eleven trillion, three hundred eleven billion, thirty million, one hundred twenty-three thousand, one hundred twenty-one".