212140023 has 8 divisors (see below), whose sum is σ = 287075328. Its totient is φ = 139315704.

The previous prime is 212140013. The next prime is 212140031. The reversal of 212140023 is 320041212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212140023 - 2¹⁰ = 212138999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212139984 and 212140011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212140013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527511 + ... + 527912.

It is an arithmetic number, because the mean of its divisors is an integer number (35884416).

Almost surely, 2^212140023 is an apocalyptic number.

212140023 is a deficient number, since it is larger than the sum of its proper divisors (74935305).

212140023 is a wasteful number, since it uses less digits than its factorization.

212140023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055493.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 212140023 is about 14565.0273944130. The cubic root of 212140023 is about 596.4044435522.

Adding to 212140023 its reverse (320041212), we get a palindrome (532181235).

The spelling of 212140023 in words is "two hundred twelve million, one hundred forty thousand, twenty-three".