40131223163 has 2 divisors, whose sum is σ = 40131223164. Its totient is φ = 40131223162.

The previous prime is 40131223151. The next prime is 40131223267. The reversal of 40131223163 is 36132213104.

40131223163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40131223163 - 2²⁸ = 39862787707 is a prime.

It is a super-2 number, since 2×40131223163² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40131213163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20065611581 + 20065611582.

It is an arithmetic number, because the mean of its divisors is an integer number (20065611582).

Almost surely, 2^40131223163 is an apocalyptic number.

40131223163 is a deficient number, since it is larger than the sum of its proper divisors (1).

40131223163 is an equidigital number, since it uses as much as digits as its factorization.

40131223163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 40131223163 its reverse (36132213104), we get a palindrome (76263436267).

The spelling of 40131223163 in words is "forty billion, one hundred thirty-one million, two hundred twenty-three thousand, one hundred sixty-three".