211415005423 has 2 divisors, whose sum is σ = 211415005424. Its totient is φ = 211415005422.

The previous prime is 211415005409. The next prime is 211415005463. The reversal of 211415005423 is 324500514112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211415005423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211415005391 and 211415005400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211415005463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105707502711 + 105707502712.

It is an arithmetic number, because the mean of its divisors is an integer number (105707502712).

Almost surely, 2^211415005423 is an apocalyptic number.

211415005423 is a deficient number, since it is larger than the sum of its proper divisors (1).

211415005423 is an equidigital number, since it uses as much as digits as its factorization.

211415005423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 211415005423 its reverse (324500514112), we get a palindrome (535915519535).

It can be divided in two parts, 21141 and 5005423, that added together give a square (5026564 = 2242²).

The spelling of 211415005423 in words is "two hundred eleven billion, four hundred fifteen million, five thousand, four hundred twenty-three".