121340113042 has 16 divisors (see below), whose sum is σ = 188600480640. Its totient is φ = 58509006192.

The previous prime is 121340112997. The next prime is 121340113049. The reversal of 121340113042 is 240311043121.

It is a super-3 number, since 3×121340113042³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121340113049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8923153 + ... + 8936740.

It is an arithmetic number, because the mean of its divisors is an integer number (11787530040).

Almost surely, 2^121340113042 is an apocalyptic number.

121340113042 is a deficient number, since it is larger than the sum of its proper divisors (67260367598).

121340113042 is a wasteful number, since it uses less digits than its factorization.

121340113042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17860017.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 121340113042 its reverse (240311043121), we get a palindrome (361651156163).

The spelling of 121340113042 in words is "one hundred twenty-one billion, three hundred forty million, one hundred thirteen thousand, forty-two".