40123334305753 has 4 divisors (see below), whose sum is σ = 40124317063140. Its totient is φ = 40122351548368.

The previous prime is 40123334305739. The next prime is 40123334305781. The reversal of 40123334305753 is 35750343332104.

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 19191172077529 + 20932162228224 = 4380773^2 + 4575168^2 .

It is a cyclic number.

It is not a de Polignac number, because 40123334305753 - 2¹⁷ = 40123334174681 is a prime.

It is a super-2 number, since 2×40123334305753² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40123334305253) 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, 491317450 + ... + 491399107.

It is an arithmetic number, because the mean of its divisors is an integer number (10031079265785).

Almost surely, 2^{40123334305753} is an apocalyptic number.

It is an amenable number.

40123334305753 is a deficient number, since it is larger than the sum of its proper divisors (982757387).

40123334305753 is an equidigital number, since it uses as much as digits as its factorization.

40123334305753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982757386.

The product of its (nonzero) digits is 1360800, while the sum is 43.

Adding to 40123334305753 its reverse (35750343332104), we get a palindrome (75873677637857).

The spelling of 40123334305753 in words is "forty trillion, one hundred twenty-three billion, three hundred thirty-four million, three hundred five thousand, seven hundred fifty-three".