121330115143 has 2 divisors, whose sum is σ = 121330115144. Its totient is φ = 121330115142.

The previous prime is 121330115119. The next prime is 121330115161. The reversal of 121330115143 is 341511033121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121330115143 is a prime.

It is a super-2 number, since 2×121330115143² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121330115243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60665057571 + 60665057572.

It is an arithmetic number, because the mean of its divisors is an integer number (60665057572).

Almost surely, 2^121330115143 is an apocalyptic number.

121330115143 is a deficient number, since it is larger than the sum of its proper divisors (1).

121330115143 is an equidigital number, since it uses as much as digits as its factorization.

121330115143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 121330115143 its reverse (341511033121), we get a palindrome (462841148264).

The spelling of 121330115143 in words is "one hundred twenty-one billion, three hundred thirty million, one hundred fifteen thousand, one hundred forty-three".