121334435245 has 16 divisors (see below), whose sum is σ = 145867857408. Its totient is φ = 96889985280.

The previous prime is 121334435237. The next prime is 121334435249. The reversal of 121334435245 is 542534433121.

It is not a de Polignac number, because 121334435245 - 2³ = 121334435237 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 (121334435249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9702837 + ... + 9715333.

It is an arithmetic number, because the mean of its divisors is an integer number (9116741088).

Almost surely, 2^121334435245 is an apocalyptic number.

It is an amenable number.

121334435245 is a deficient number, since it is larger than the sum of its proper divisors (24533422163).

121334435245 is a wasteful number, since it uses less digits than its factorization.

121334435245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15900.

The product of its digits is 172800, while the sum is 37.

Adding to 121334435245 its reverse (542534433121), we get a palindrome (663868868366).

The spelling of 121334435245 in words is "one hundred twenty-one billion, three hundred thirty-four million, four hundred thirty-five thousand, two hundred forty-five".