40030310123 has 4 divisors (see below), whose sum is σ = 40134828288. Its totient is φ = 39925791960.

The previous prime is 40030310087. The next prime is 40030310129. The reversal of 40030310123 is 32101303004.

It is a happy number.

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 40030310123 - 2¹⁶ = 40030244587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40030310129) 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, 52258508 + ... + 52259273.

It is an arithmetic number, because the mean of its divisors is an integer number (10033707072).

Almost surely, 2^40030310123 is an apocalyptic number.

40030310123 is a deficient number, since it is larger than the sum of its proper divisors (104518165).

40030310123 is a wasteful number, since it uses less digits than its factorization.

40030310123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104518164.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 40030310123 its reverse (32101303004), we get a palindrome (72131613127).

The spelling of 40030310123 in words is "forty billion, thirty million, three hundred ten thousand, one hundred twenty-three".