40223173961903 has 2 divisors, whose sum is σ = 40223173961904. Its totient is φ = 40223173961902.

The previous prime is 40223173961881. The next prime is 40223173961939. The reversal of 40223173961903 is 30916937132204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40223173961903 - 2¹⁸ = 40223173699759 is a prime.

It is a super-2 number, since 2×40223173961903² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40223173961963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111586980951 + 20111586980952.

It is an arithmetic number, because the mean of its divisors is an integer number (20111586980952).

Almost surely, 2^{40223173961903} is an apocalyptic number.

40223173961903 is a deficient number, since it is larger than the sum of its proper divisors (1).

40223173961903 is an equidigital number, since it uses as much as digits as its factorization.

40223173961903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The spelling of 40223173961903 in words is "forty trillion, two hundred twenty-three billion, one hundred seventy-three million, nine hundred sixty-one thousand, nine hundred three".