121321103293 has 8 divisors (see below), whose sum is σ = 130680709208. Its totient is φ = 111965385024.

The previous prime is 121321103273. The next prime is 121321103297. The reversal of 121321103293 is 392301123121.

It can be written as a sum of positive squares in 4 ways, for example, as 1630705924 + 119690397369 = 40382^2 + 345963^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121321103293 - 2²¹ = 121319006141 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 (121321103297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906930 + ... + 1032067.

It is an arithmetic number, because the mean of its divisors is an integer number (16335088651).

Almost surely, 2^121321103293 is an apocalyptic number.

121321103293 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121321103293 is a deficient number, since it is larger than the sum of its proper divisors (9359605915).

121321103293 is a wasteful number, since it uses less digits than its factorization.

121321103293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943823.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 121321103293 in words is "one hundred twenty-one billion, three hundred twenty-one million, one hundred three thousand, two hundred ninety-three".