215123235234 has 16 divisors (see below), whose sum is σ = 433634239488. Its totient is φ = 71143116912.

The previous prime is 215123235227. The next prime is 215123235247. The reversal of 215123235234 is 432532321512.

It is a super-3 number, since 3×215123235234³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 215123235195 and 215123235204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141156217 + ... + 141157740.

It is an arithmetic number, because the mean of its divisors is an integer number (27102139968).

Almost surely, 2^215123235234 is an apocalyptic number.

215123235234 is an abundant number, since it is smaller than the sum of its proper divisors (218511004254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215123235234 is a wasteful number, since it uses less digits than its factorization.

215123235234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282314089.

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

Adding to 215123235234 its reverse (432532321512), we get a palindrome (647655556746).

The spelling of 215123235234 in words is "two hundred fifteen billion, one hundred twenty-three million, two hundred thirty-five thousand, two hundred thirty-four".