121230542641 has 12 divisors (see below), whose sum is σ = 131296758192. Its totient is φ = 111885127536.

The previous prime is 121230542639. The next prime is 121230542669. The reversal of 121230542641 is 146245032121.

It is not a de Polignac number, because 121230542641 - 2¹ = 121230542639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121230542141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 930390 + ... + 1052656.

It is an arithmetic number, because the mean of its divisors is an integer number (10941396516).

Almost surely, 2^121230542641 is an apocalyptic number.

It is an amenable number.

121230542641 is a deficient number, since it is larger than the sum of its proper divisors (10066215551).

121230542641 is a wasteful number, since it uses less digits than its factorization.

121230542641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128160 (or 128147 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 121230542641 its reverse (146245032121), we get a palindrome (267475574762).

The spelling of 121230542641 in words is "one hundred twenty-one billion, two hundred thirty million, five hundred forty-two thousand, six hundred forty-one".