220311123143243 has 32 divisors (see below), whose sum is σ = 255538333543680. Its totient is φ = 187830180720000.

The previous prime is 220311123143231. The next prime is 220311123143273. The reversal of 220311123143243 is 342341321113022.

220311123143243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 220311123143243 - 2⁶ = 220311123143179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220311123143213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120277796 + ... + 122095742.

It is an arithmetic number, because the mean of its divisors is an integer number (7985572923240).

Almost surely, 2^{220311123143243} is an apocalyptic number.

220311123143243 is a deficient number, since it is larger than the sum of its proper divisors (35227210400437).

220311123143243 is a wasteful number, since it uses less digits than its factorization.

220311123143243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823819.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 220311123143243 its reverse (342341321113022), we get a palindrome (562652444256265).

The spelling of 220311123143243 in words is "two hundred twenty trillion, three hundred eleven billion, one hundred twenty-three million, one hundred forty-three thousand, two hundred forty-three".