121032020143 has 2 divisors, whose sum is σ = 121032020144. Its totient is φ = 121032020142.

The previous prime is 121032020117. The next prime is 121032020203. The reversal of 121032020143 is 341020230121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121032020143 - 2²⁹ = 120495149231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121032020143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121032020243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60516010071 + 60516010072.

It is an arithmetic number, because the mean of its divisors is an integer number (60516010072).

Almost surely, 2^121032020143 is an apocalyptic number.

121032020143 is a deficient number, since it is larger than the sum of its proper divisors (1).

121032020143 is an equidigital number, since it uses as much as digits as its factorization.

121032020143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 121032020143 its reverse (341020230121), we get a palindrome (462052250264).

The spelling of 121032020143 in words is "one hundred twenty-one billion, thirty-two million, twenty thousand, one hundred forty-three".