120646643723 has 2 divisors, whose sum is σ = 120646643724. Its totient is φ = 120646643722.

The previous prime is 120646643717. The next prime is 120646643753. The reversal of 120646643723 is 327346646021.

It is a weak prime.

It is an emirp because it is prime and its reverse (327346646021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120646643723 - 2²⁸ = 120378208267 is a prime.

It is a super-2 number, since 2×120646643723² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120646643753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60323321861 + 60323321862.

It is an arithmetic number, because the mean of its divisors is an integer number (60323321862).

Almost surely, 2^120646643723 is an apocalyptic number.

120646643723 is a deficient number, since it is larger than the sum of its proper divisors (1).

120646643723 is an equidigital number, since it uses as much as digits as its factorization.

120646643723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 120646643723 in words is "one hundred twenty billion, six hundred forty-six million, six hundred forty-three thousand, seven hundred twenty-three".