1201011113121 has 8 divisors (see below), whose sum is σ = 1619340827040. Its totient is φ = 791677737312.

The previous prime is 1201011113119. The next prime is 1201011113143. The reversal of 1201011113121 is 1213111101021.

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

It is not a de Polignac number, because 1201011113121 - 2¹ = 1201011113119 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201011113121.

It is not an unprimeable number, because it can be changed into a prime (1201011113021) 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, 2249084215 + ... + 2249084748.

It is an arithmetic number, because the mean of its divisors is an integer number (202417603380).

Almost surely, 2^{1201011113121} is an apocalyptic number.

It is an amenable number.

1201011113121 is a deficient number, since it is larger than the sum of its proper divisors (418329713919).

1201011113121 is an equidigital number, since it uses as much as digits as its factorization.

1201011113121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4498169055.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 1201011113121 its reverse (1213111101021), we get a palindrome (2414122214142).

The spelling of 1201011113121 in words is "one trillion, two hundred one billion, eleven million, one hundred thirteen thousand, one hundred twenty-one".