121000202143 has 2 divisors, whose sum is σ = 121000202144. Its totient is φ = 121000202142.

The previous prime is 121000202117. The next prime is 121000202149. The reversal of 121000202143 is 341202000121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121000202143 - 2⁵ = 121000202111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121000202149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500101071 + 60500101072.

It is an arithmetic number, because the mean of its divisors is an integer number (60500101072).

Almost surely, 2^121000202143 is an apocalyptic number.

121000202143 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000202143 is an equidigital number, since it uses as much as digits as its factorization.

121000202143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 121000202143 its reverse (341202000121), we get a palindrome (462202202264).

The spelling of 121000202143 in words is "one hundred twenty-one billion, two hundred two thousand, one hundred forty-three".