121013332231111 has 4 divisors (see below), whose sum is σ = 121135444575424. Its totient is φ = 120891219886800.

The previous prime is 121013332231109. The next prime is 121013332231213. The reversal of 121013332231111 is 111132233310121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121013332231111 - 2¹ = 121013332231109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121013332241111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61056170670 + ... + 61056172651.

It is an arithmetic number, because the mean of its divisors is an integer number (30283861143856).

Almost surely, 2^{121013332231111} is an apocalyptic number.

121013332231111 is a deficient number, since it is larger than the sum of its proper divisors (122112344313).

121013332231111 is an equidigital number, since it uses as much as digits as its factorization.

121013332231111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122112344312.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 121013332231111 its reverse (111132233310121), we get a palindrome (232145565541232).

The spelling of 121013332231111 in words is "one hundred twenty-one trillion, thirteen billion, three hundred thirty-two million, two hundred thirty-one thousand, one hundred eleven".