40031223653 has 2 divisors, whose sum is σ = 40031223654. Its totient is φ = 40031223652.

The previous prime is 40031223613. The next prime is 40031223677. The reversal of 40031223653 is 35632213004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40006800289 + 24423364 = 200017^2 + 4942^2 .

It is a cyclic number.

It is not a de Polignac number, because 40031223653 - 2¹⁰ = 40031222629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40031223613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20015611826 + 20015611827.

It is an arithmetic number, because the mean of its divisors is an integer number (20015611827).

Almost surely, 2^40031223653 is an apocalyptic number.

It is an amenable number.

40031223653 is a deficient number, since it is larger than the sum of its proper divisors (1).

40031223653 is an equidigital number, since it uses as much as digits as its factorization.

40031223653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 40031223653 its reverse (35632213004), we get a palindrome (75663436657).

The spelling of 40031223653 in words is "forty billion, thirty-one million, two hundred twenty-three thousand, six hundred fifty-three".