720046123 has 2 divisors, whose sum is σ = 720046124. Its totient is φ = 720046122.

The previous prime is 720046111. The next prime is 720046127. The reversal of 720046123 is 321640027.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 720046123 - 2⁵ = 720046091 is a prime.

It is a super-2 number, since 2×720046123² = 1036932838494662258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (720046127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360023061 + 360023062.

It is an arithmetic number, because the mean of its divisors is an integer number (360023062).

Almost surely, 2^720046123 is an apocalyptic number.

720046123 is a deficient number, since it is larger than the sum of its proper divisors (1).

720046123 is an equidigital number, since it uses as much as digits as its factorization.

720046123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 720046123 is about 26833.6751675949. The cubic root of 720046123 is about 896.3000874057.

The spelling of 720046123 in words is "seven hundred twenty million, forty-six thousand, one hundred twenty-three".