121354453121 has 8 divisors (see below), whose sum is σ = 132390516288. Its totient is φ = 110319030000.

The previous prime is 121354453093. The next prime is 121354453123.

121354453121 is nontrivially palindromic in base 10.

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 121354453121 - 2⁶ = 121354453057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121354453123) 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, 291956 + ... + 572666.

It is an arithmetic number, because the mean of its divisors is an integer number (16548814536).

Almost surely, 2^121354453121 is an apocalyptic number.

121354453121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121354453121 is a deficient number, since it is larger than the sum of its proper divisors (11036063167).

121354453121 is a wasteful number, since it uses less digits than its factorization.

121354453121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320023.

The product of its digits is 14400, while the sum is 32.

It can be divided in two parts, 121354 and 453121, that added together give a palindrome (574475).

The spelling of 121354453121 in words is "one hundred twenty-one billion, three hundred fifty-four million, four hundred fifty-three thousand, one hundred twenty-one".