121442034340 has 48 divisors (see below), whose sum is σ = 278360893440. Its totient is φ = 44137210880.

The previous prime is 121442034299. The next prime is 121442034347. The reversal of 121442034340 is 43430244121.

It is a junction number, because it is equal to n+sod(n) for n = 121442034299 and 121442034308.

It is not an unprimeable number, because it can be changed into a prime (121442034347) 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, 269469 + ... + 561691.

It is an arithmetic number, because the mean of its divisors is an integer number (5799185280).

Almost surely, 2^121442034340 is an apocalyptic number.

121442034340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121442034340 is an abundant number, since it is smaller than the sum of its proper divisors (156918859100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121442034340 is a wasteful number, since it uses less digits than its factorization.

121442034340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294132 (or 294130 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 121442034340 its reverse (43430244121), we get a palindrome (164872278461).

The spelling of 121442034340 in words is "one hundred twenty-one billion, four hundred forty-two million, thirty-four thousand, three hundred forty".