120423287 has 2 divisors, whose sum is σ = 120423288. Its totient is φ = 120423286.

The previous prime is 120423253. The next prime is 120423299. The reversal of 120423287 is 782324021.

It is a strong prime.

It is an emirp because it is prime and its reverse (782324021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120423287 - 2⁸ = 120423031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120422287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60211643 + 60211644.

It is an arithmetic number, because the mean of its divisors is an integer number (60211644).

Almost surely, 2^120423287 is an apocalyptic number.

120423287 is a deficient number, since it is larger than the sum of its proper divisors (1).

120423287 is an equidigital number, since it uses as much as digits as its factorization.

120423287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 120423287 is about 10973.7544623524. The cubic root of 120423287 is about 493.8216873534.

The spelling of 120423287 in words is "one hundred twenty million, four hundred twenty-three thousand, two hundred eighty-seven".