215233145223 has 4 divisors (see below), whose sum is σ = 286977526968. Its totient is φ = 143488763480.

The previous prime is 215233145119. The next prime is 215233145293. The reversal of 215233145223 is 322541332512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 215233145223 - 2⁸ = 215233144967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215233145293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35872190868 + ... + 35872190873.

It is an arithmetic number, because the mean of its divisors is an integer number (71744381742).

Almost surely, 2^215233145223 is an apocalyptic number.

215233145223 is a deficient number, since it is larger than the sum of its proper divisors (71744381745).

215233145223 is an equidigital number, since it uses as much as digits as its factorization.

215233145223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71744381744.

The product of its digits is 43200, while the sum is 33.

Adding to 215233145223 its reverse (322541332512), we get a palindrome (537774477735).

The spelling of 215233145223 in words is "two hundred fifteen billion, two hundred thirty-three million, one hundred forty-five thousand, two hundred twenty-three".