11312012013121 has 8 divisors (see below), whose sum is σ = 11377626940224. Its totient is φ = 11246399702160.

The previous prime is 11312012013119. The next prime is 11312012013151. The reversal of 11312012013121 is 12131021021311.

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 11312012013121 - 2¹ = 11312012013119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312012013151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8379676 + ... + 9635506.

It is an arithmetic number, because the mean of its divisors is an integer number (1422203367528).

Almost surely, 2^{11312012013121} is an apocalyptic number.

It is an amenable number.

11312012013121 is a deficient number, since it is larger than the sum of its proper divisors (65614927103).

11312012013121 is a wasteful number, since it uses less digits than its factorization.

11312012013121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308071.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 11312012013121 its reverse (12131021021311), we get a palindrome (23443033034432).

The spelling of 11312012013121 in words is "eleven trillion, three hundred twelve billion, twelve million, thirteen thousand, one hundred twenty-one".