40220123329 has 2 divisors, whose sum is σ = 40220123330. Its totient is φ = 40220123328.

The previous prime is 40220123309. The next prime is 40220123351. The reversal of 40220123329 is 92332102204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40089249729 + 130873600 = 200223^2 + 11440^2 .

It is a cyclic number.

It is not a de Polignac number, because 40220123329 - 2²⁹ = 39683252417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40220123297 and 40220123306.

It is not a weakly prime, because it can be changed into another prime (40220123309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20110061664 + 20110061665.

It is an arithmetic number, because the mean of its divisors is an integer number (20110061665).

Almost surely, 2^40220123329 is an apocalyptic number.

It is an amenable number.

40220123329 is a deficient number, since it is larger than the sum of its proper divisors (1).

40220123329 is an equidigital number, since it uses as much as digits as its factorization.

40220123329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 40220123329 in words is "forty billion, two hundred twenty million, one hundred twenty-three thousand, three hundred twenty-nine".