121449605473 has 24 divisors (see below), whose sum is σ = 145239969024. Its totient is φ = 101209752000.

The previous prime is 121449605419. The next prime is 121449605477. The reversal of 121449605473 is 374506944121.

It is not a de Polignac number, because 121449605473 - 2¹³ = 121449597281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121449605477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173133 + ... + 522373.

It is an arithmetic number, because the mean of its divisors is an integer number (6051665376).

Almost surely, 2^121449605473 is an apocalyptic number.

It is an amenable number.

121449605473 is a deficient number, since it is larger than the sum of its proper divisors (23790363551).

121449605473 is a wasteful number, since it uses less digits than its factorization.

121449605473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349453 (or 349446 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 121449605473 in words is "one hundred twenty-one billion, four hundred forty-nine million, six hundred five thousand, four hundred seventy-three".