40530511423 has 2 divisors, whose sum is σ = 40530511424. Its totient is φ = 40530511422.

The previous prime is 40530511421. The next prime is 40530511517. The reversal of 40530511423 is 32411503504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40530511423 - 2¹ = 40530511421 is a prime.

Together with 40530511421, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 40530511391 and 40530511400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40530511421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20265255711 + 20265255712.

It is an arithmetic number, because the mean of its divisors is an integer number (20265255712).

Almost surely, 2^40530511423 is an apocalyptic number.

40530511423 is a deficient number, since it is larger than the sum of its proper divisors (1).

40530511423 is an equidigital number, since it uses as much as digits as its factorization.

40530511423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 40530511423 in words is "forty billion, five hundred thirty million, five hundred eleven thousand, four hundred twenty-three".