7123707136543 has 4 divisors (see below), whose sum is σ = 7433433533808. Its totient is φ = 6813980739280.

The previous prime is 7123707136523. The next prime is 7123707136613. The reversal of 7123707136543 is 3456317073217.

7123707136543 is digitally balanced in base 3, 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 is a cyclic number.

It is not a de Polignac number, because 7123707136543 - 2⁹ = 7123707136031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7123707136523) 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, 154863198598 + ... + 154863198643.

It is an arithmetic number, because the mean of its divisors is an integer number (1858358383452).

Almost surely, 2^{7123707136543} is an apocalyptic number.

7123707136543 is a deficient number, since it is larger than the sum of its proper divisors (309726397265).

7123707136543 is a wasteful number, since it uses less digits than its factorization.

7123707136543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309726397264.

The product of its (nonzero) digits is 2222640, while the sum is 49.

The spelling of 7123707136543 in words is "seven trillion, one hundred twenty-three billion, seven hundred seven million, one hundred thirty-six thousand, five hundred forty-three".