40231103123 has 2 divisors, whose sum is σ = 40231103124. Its totient is φ = 40231103122.

The previous prime is 40231103113. The next prime is 40231103137. The reversal of 40231103123 is 32130113204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40231103123 - 2²⁰ = 40230054547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40231103095 and 40231103104.

It is not a weakly prime, because it can be changed into another prime (40231103113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20115551561 + 20115551562.

It is an arithmetic number, because the mean of its divisors is an integer number (20115551562).

Almost surely, 2^40231103123 is an apocalyptic number.

40231103123 is a deficient number, since it is larger than the sum of its proper divisors (1).

40231103123 is an equidigital number, since it uses as much as digits as its factorization.

40231103123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 40231103123 its reverse (32130113204), we get a palindrome (72361216327).

The spelling of 40231103123 in words is "forty billion, two hundred thirty-one million, one hundred three thousand, one hundred twenty-three".