7243112123 has 64 divisors (see below), whose sum is σ = 8819435520. Its totient is φ = 5883494400.

The previous prime is 7243112099. The next prime is 7243112153. The reversal of 7243112123 is 3212113427.

It is a cyclic number.

It is not a de Polignac number, because 7243112123 - 2⁶ = 7243112059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7243112092 and 7243112101.

It is not an unprimeable number, because it can be changed into a prime (7243112153) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37921958 + ... + 37922148.

It is an arithmetic number, because the mean of its divisors is an integer number (137803680).

Almost surely, 2^7243112123 is an apocalyptic number.

7243112123 is a deficient number, since it is larger than the sum of its proper divisors (1576323397).

7243112123 is a wasteful number, since it uses less digits than its factorization.

7243112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408.

The product of its digits is 2016, while the sum is 26.

The square root of 7243112123 is about 85106.4752119367. The cubic root of 7243112123 is about 1934.8252037597.

The spelling of 7243112123 in words is "seven billion, two hundred forty-three million, one hundred twelve thousand, one hundred twenty-three".