212140240023 has 16 divisors (see below), whose sum is σ = 283085936640. Its totient is φ = 141310742496.

The previous prime is 212140240021. The next prime is 212140240027. The reversal of 212140240023 is 320042041212.

It is not a de Polignac number, because 212140240023 - 2¹ = 212140240021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212140240021) 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, 24874386 + ... + 24882912.

It is an arithmetic number, because the mean of its divisors is an integer number (17692871040).

Almost surely, 2^212140240023 is an apocalyptic number.

212140240023 is a deficient number, since it is larger than the sum of its proper divisors (70945696617).

212140240023 is a wasteful number, since it uses less digits than its factorization.

212140240023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14366.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 212140240023 its reverse (320042041212), we get a palindrome (532182281235).

The spelling of 212140240023 in words is "two hundred twelve billion, one hundred forty million, two hundred forty thousand, twenty-three".