121452453202 has 4 divisors (see below), whose sum is σ = 182178679806. Its totient is φ = 60726226600.

The previous prime is 121452453197. The next prime is 121452453211. The reversal of 121452453202 is 202354254121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202354254121 = 277 ⋅730520773.

It can be written as a sum of positive squares in only one way, i.e., 119646118201 + 1806335001 = 345899^2 + 42501^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30363113299 + ... + 30363113302.

Almost surely, 2^121452453202 is an apocalyptic number.

121452453202 is a deficient number, since it is larger than the sum of its proper divisors (60726226604).

121452453202 is an equidigital number, since it uses as much as digits as its factorization.

121452453202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60726226603.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 121452453202 in words is "one hundred twenty-one billion, four hundred fifty-two million, four hundred fifty-three thousand, two hundred two".