121421054303311 has 16 divisors (see below), whose sum is σ = 145609203571200. Its totient is φ = 98994034880928.

The previous prime is 121421054303299. The next prime is 121421054303321. The reversal of 121421054303311 is 113303450124121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121421054303311 - 2⁷ = 121421054303183 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 (121421054303321) 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, 2106585816 + ... + 2106643453.

It is an arithmetic number, because the mean of its divisors is an integer number (9100575223200).

Almost surely, 2^{121421054303311} is an apocalyptic number.

121421054303311 is a deficient number, since it is larger than the sum of its proper divisors (24188149267889).

121421054303311 is a wasteful number, since it uses less digits than its factorization.

121421054303311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213229478.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 121421054303311 in words is "one hundred twenty-one trillion, four hundred twenty-one billion, fifty-four million, three hundred three thousand, three hundred eleven".