121402332111 has 4 divisors (see below), whose sum is σ = 161869776152. Its totient is φ = 80934888072.

The previous prime is 121402332109. The next prime is 121402332119. The reversal of 121402332111 is 111233204121.

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

It is not a de Polignac number, because 121402332111 - 2¹ = 121402332109 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 (121402332119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20233722016 + ... + 20233722021.

It is an arithmetic number, because the mean of its divisors is an integer number (40467444038).

Almost surely, 2^121402332111 is an apocalyptic number.

121402332111 is a deficient number, since it is larger than the sum of its proper divisors (40467444041).

121402332111 is an equidigital number, since it uses as much as digits as its factorization.

121402332111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40467444040.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121402332111 its reverse (111233204121), we get a palindrome (232635536232).

The spelling of 121402332111 in words is "one hundred twenty-one billion, four hundred two million, three hundred thirty-two thousand, one hundred eleven".