223121120030312 has 32 divisors (see below), whose sum is σ = 478694819718720. Its totient is φ = 95507710368000.

The previous prime is 223121120030269. The next prime is 223121120030329. The reversal of 223121120030312 is 213030021121322.

It is a super-3 number, since 3×223121120030312³ (a number of 44 digits) contains 333 as substring.

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, 2408844689 + ... + 2408937312.

It is an arithmetic number, because the mean of its divisors is an integer number (14959213116210).

Almost surely, 2^{223121120030312} is an apocalyptic number.

It is an amenable number.

223121120030312 is an abundant number, since it is smaller than the sum of its proper divisors (255573699688408).

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

223121120030312 is a wasteful number, since it uses less digits than its factorization.

223121120030312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4817782841 (or 4817782837 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 223121120030312 its reverse (213030021121322), we get a palindrome (436151141151634).

The spelling of 223121120030312 in words is "two hundred twenty-three trillion, one hundred twenty-one billion, one hundred twenty million, thirty thousand, three hundred twelve".