121030031133021 has 16 divisors (see below), whose sum is σ = 162548687470400. Its totient is φ = 80099133631488.

The previous prime is 121030031132893. The next prime is 121030031133029. The reversal of 121030031133021 is 120331130030121.

It is a happy number.

It is not a de Polignac number, because 121030031133021 - 2⁷ = 121030031132893 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 (121030031133029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8085406 + ... + 17533791.

It is an arithmetic number, because the mean of its divisors is an integer number (10159292966900).

Almost surely, 2^{121030031133021} is an apocalyptic number.

It is an amenable number.

121030031133021 is a deficient number, since it is larger than the sum of its proper divisors (41518656337379).

121030031133021 is a wasteful number, since it uses less digits than its factorization.

121030031133021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25630668.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 121030031133021 its reverse (120331130030121), we get a palindrome (241361161163142).

The spelling of 121030031133021 in words is "one hundred twenty-one trillion, thirty billion, thirty-one million, one hundred thirty-three thousand, twenty-one".