120618623 has 2 divisors, whose sum is σ = 120618624. Its totient is φ = 120618622.

The previous prime is 120618607. The next prime is 120618661. The reversal of 120618623 is 326816021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120618623 - 2⁴ = 120618607 is a prime.

It is a super-2 number, since 2×120618623² = 29097704428832258, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120618523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60309311 + 60309312.

It is an arithmetic number, because the mean of its divisors is an integer number (60309312).

Almost surely, 2^120618623 is an apocalyptic number.

120618623 is a deficient number, since it is larger than the sum of its proper divisors (1).

120618623 is an equidigital number, since it uses as much as digits as its factorization.

120618623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 120618623 is about 10982.6510005554. The cubic root of 120618623 is about 494.0885489287.

The spelling of 120618623 in words is "one hundred twenty million, six hundred eighteen thousand, six hundred twenty-three".