121452012143 has 32 divisors (see below), whose sum is σ = 152409434112. Its totient is φ = 94021804800.

The previous prime is 121452012131. The next prime is 121452012167. The reversal of 121452012143 is 341210254121.

It is a happy number.

It is not a de Polignac number, because 121452012143 - 2⁴ = 121452012127 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 (121452012193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8299373 + ... + 8313993.

It is an arithmetic number, because the mean of its divisors is an integer number (4762794816).

Almost surely, 2^121452012143 is an apocalyptic number.

121452012143 is a deficient number, since it is larger than the sum of its proper divisors (30957421969).

121452012143 is a wasteful number, since it uses less digits than its factorization.

121452012143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15335.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 121452012143 its reverse (341210254121), we get a palindrome (462662266264).

The spelling of 121452012143 in words is "one hundred twenty-one billion, four hundred fifty-two million, twelve thousand, one hundred forty-three".