211430240023 has 16 divisors (see below), whose sum is σ = 215010710496. Its totient is φ = 207886443520.

The previous prime is 211430240017. The next prime is 211430240027. The reversal of 211430240023 is 320042034112.

It is not a de Polignac number, because 211430240023 - 2⁹ = 211430239511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211430239976 and 211430240003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211430240027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7193265 + ... + 7222597.

It is an arithmetic number, because the mean of its divisors is an integer number (13438169406).

Almost surely, 2^211430240023 is an apocalyptic number.

211430240023 is a deficient number, since it is larger than the sum of its proper divisors (3580470473).

211430240023 is a wasteful number, since it uses less digits than its factorization.

211430240023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29954.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 211430240023 its reverse (320042034112), we get a palindrome (531472274135).

The spelling of 211430240023 in words is "two hundred eleven billion, four hundred thirty million, two hundred forty thousand, twenty-three".