121413264623021 has 16 divisors (see below), whose sum is σ = 140555217821568. Its totient is φ = 102726837576000.

The previous prime is 121413264623009. The next prime is 121413264623051. The reversal of 121413264623021 is 120326462314121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121413264623021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121413264623051) 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, 259177190 + ... + 259645223.

It is an arithmetic number, because the mean of its divisors is an integer number (8784701113848).

Almost surely, 2^{121413264623021} is an apocalyptic number.

It is an amenable number.

121413264623021 is a deficient number, since it is larger than the sum of its proper divisors (19141953198547).

121413264623021 is a wasteful number, since it uses less digits than its factorization.

121413264623021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518822852.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 121413264623021 in words is "one hundred twenty-one trillion, four hundred thirteen billion, two hundred sixty-four million, six hundred twenty-three thousand, twenty-one".