121003345134021 has 32 divisors (see below), whose sum is σ = 203720648306688. Its totient is φ = 62247975863040.

The previous prime is 121003345133981. The next prime is 121003345134047. The reversal of 121003345134021 is 120431543300121.

It is not a de Polignac number, because 121003345134021 - 2⁷ = 121003345133893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121003345134021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121003345134121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7368360145 + ... + 7368376566.

It is an arithmetic number, because the mean of its divisors is an integer number (6366270259584).

Almost surely, 2^{121003345134021} is an apocalyptic number.

It is an amenable number.

121003345134021 is a deficient number, since it is larger than the sum of its proper divisors (82717303172667).

121003345134021 is a wasteful number, since it uses less digits than its factorization.

121003345134021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14736736761.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 121003345134021 its reverse (120431543300121), we get a palindrome (241434888434142).

The spelling of 121003345134021 in words is "one hundred twenty-one trillion, three billion, three hundred forty-five million, one hundred thirty-four thousand, twenty-one".