40212105023 has 2 divisors, whose sum is σ = 40212105024. Its totient is φ = 40212105022.

The previous prime is 40212105007. The next prime is 40212105029. The reversal of 40212105023 is 32050121204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40212105023 - 2⁴ = 40212105007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40212104986 and 40212105004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40212105029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20106052511 + 20106052512.

It is an arithmetic number, because the mean of its divisors is an integer number (20106052512).

Almost surely, 2^40212105023 is an apocalyptic number.

40212105023 is a deficient number, since it is larger than the sum of its proper divisors (1).

40212105023 is an equidigital number, since it uses as much as digits as its factorization.

40212105023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 40212105023 its reverse (32050121204), we get a palindrome (72262226227).

The spelling of 40212105023 in words is "forty billion, two hundred twelve million, one hundred five thousand, twenty-three".