120999071 has 2 divisors, whose sum is σ = 120999072. Its totient is φ = 120999070.

The previous prime is 120999059. The next prime is 120999089. The reversal of 120999071 is 170999021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120999071 - 2²² = 116804767 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120999091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60499535 + 60499536.

It is an arithmetic number, because the mean of its divisors is an integer number (60499536).

Almost surely, 2^120999071 is an apocalyptic number.

120999071 is a deficient number, since it is larger than the sum of its proper divisors (1).

120999071 is an equidigital number, since it uses as much as digits as its factorization.

120999071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 38.

The square root of 120999071 is about 10999.9577726462. The cubic root of 120999071 is about 494.6074785048.

The spelling of 120999071 in words is "one hundred twenty million, nine hundred ninety-nine thousand, seventy-one".