40223045523 has 16 divisors (see below), whose sum is σ = 53912000000. Its totient is φ = 26674932960.

The previous prime is 40223045461. The next prime is 40223045537. The reversal of 40223045523 is 32554032204.

It is not a de Polignac number, because 40223045523 - 2¹² = 40223041427 is a prime.

It is a super-2 number, since 2×40223045523² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40223045593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 779478 + ... + 829476.

It is an arithmetic number, because the mean of its divisors is an integer number (3369500000).

Almost surely, 2^40223045523 is an apocalyptic number.

40223045523 is a deficient number, since it is larger than the sum of its proper divisors (13688954477).

40223045523 is a wasteful number, since it uses less digits than its factorization.

40223045523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51402.

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 40223045523 its reverse (32554032204), we get a palindrome (72777077727).

The spelling of 40223045523 in words is "forty billion, two hundred twenty-three million, forty-five thousand, five hundred twenty-three".