623430450656113 has 4 divisors (see below), whose sum is σ = 623433033876708. Its totient is φ = 623427867435520.

The previous prime is 623430450656107. The next prime is 623430450656161. The reversal of 623430450656113 is 311656054034326.

623430450656113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 306980079597409 + 316450371058704 = 17520847^2 + 17789052^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623430450656113 is a prime.

It is a super-2 number, since 2×623430450656113² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623430450656173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1291248256 + ... + 1291730977.

It is an arithmetic number, because the mean of its divisors is an integer number (155858258469177).

Almost surely, 2^{623430450656113} is an apocalyptic number.

It is an amenable number.

623430450656113 is a deficient number, since it is larger than the sum of its proper divisors (2583220595).

623430450656113 is a wasteful number, since it uses less digits than its factorization.

623430450656113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583220594.

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 623430450656113 in words is "six hundred twenty-three trillion, four hundred thirty billion, four hundred fifty million, six hundred fifty-six thousand, one hundred thirteen".