120015143 has 2 divisors, whose sum is σ = 120015144. Its totient is φ = 120015142.

The previous prime is 120015131. The next prime is 120015149. The reversal of 120015143 is 341510021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120015143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120015149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60007571 + 60007572.

It is an arithmetic number, because the mean of its divisors is an integer number (60007572).

Almost surely, 2^120015143 is an apocalyptic number.

120015143 is a deficient number, since it is larger than the sum of its proper divisors (1).

120015143 is an equidigital number, since it uses as much as digits as its factorization.

120015143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 120015143 is about 10955.1423085234. The cubic root of 120015143 is about 493.2631616876.

Adding to 120015143 its reverse (341510021), we get a palindrome (461525164).

The spelling of 120015143 in words is "one hundred twenty million, fifteen thousand, one hundred forty-three".