40124032321 has 2 divisors, whose sum is σ = 40124032322. Its totient is φ = 40124032320.

The previous prime is 40124032303. The next prime is 40124032337. The reversal of 40124032321 is 12323042104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27817236225 + 12306796096 = 166785^2 + 110936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40124032321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40124032292 and 40124032301.

It is not a weakly prime, because it can be changed into another prime (40124030321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20062016160 + 20062016161.

It is an arithmetic number, because the mean of its divisors is an integer number (20062016161).

Almost surely, 2^40124032321 is an apocalyptic number.

It is an amenable number.

40124032321 is a deficient number, since it is larger than the sum of its proper divisors (1).

40124032321 is an equidigital number, since it uses as much as digits as its factorization.

40124032321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40124032321 its reverse (12323042104), we get a palindrome (52447074425).

The spelling of 40124032321 in words is "forty billion, one hundred twenty-four million, thirty-two thousand, three hundred twenty-one".