121030440134 has 4 divisors (see below), whose sum is σ = 181545660204. Its totient is φ = 60515220066.

The previous prime is 121030440133. The next prime is 121030440143. The reversal of 121030440134 is 431044030121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121030440133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30257610032 + ... + 30257610035.

It is an arithmetic number, because the mean of its divisors is an integer number (45386415051).

Almost surely, 2^121030440134 is an apocalyptic number.

121030440134 is a deficient number, since it is larger than the sum of its proper divisors (60515220070).

121030440134 is an equidigital number, since it uses as much as digits as its factorization.

121030440134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60515220069.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 121030440134 its reverse (431044030121), we get a palindrome (552074470255).

The spelling of 121030440134 in words is "one hundred twenty-one billion, thirty million, four hundred forty thousand, one hundred thirty-four".