230102311221 has 32 divisors (see below), whose sum is σ = 358882876800. Its totient is φ = 145307986560.

The previous prime is 230102311211. The next prime is 230102311267. The reversal of 230102311221 is 122113201032.

230102311221 is a `hidden beast` number, since 2 + 30 + 102 + 311 + 221 = 666.

It is not a de Polignac number, because 230102311221 - 2¹³ = 230102303029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 230102311194 and 230102311203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230102311211) 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, 4353211 + ... + 4405751.

It is an arithmetic number, because the mean of its divisors is an integer number (11215089900).

Almost surely, 2^230102311221 is an apocalyptic number.

It is an amenable number.

230102311221 is a deficient number, since it is larger than the sum of its proper divisors (128780565579).

230102311221 is a wasteful number, since it uses less digits than its factorization.

230102311221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61106 (or 61100 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 230102311221 its reverse (122113201032), we get a palindrome (352215512253).

The spelling of 230102311221 in words is "two hundred thirty billion, one hundred two million, three hundred eleven thousand, two hundred twenty-one".