120973987 has 2 divisors, whose sum is σ = 120973988. Its totient is φ = 120973986.

The previous prime is 120973949. The next prime is 120973991. The reversal of 120973987 is 789379021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120973987 - 2²³ = 112585379 is a prime.

It is not a weakly prime, because it can be changed into another prime (120983987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60486993 + 60486994.

It is an arithmetic number, because the mean of its divisors is an integer number (60486994).

Almost surely, 2^120973987 is an apocalyptic number.

120973987 is a deficient number, since it is larger than the sum of its proper divisors (1).

120973987 is an equidigital number, since it uses as much as digits as its factorization.

120973987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 120973987 is about 10998.8175273527. The cubic root of 120973987 is about 494.5732975497.

The spelling of 120973987 in words is "one hundred twenty million, nine hundred seventy-three thousand, nine hundred eighty-seven".