201030233121 has 6 divisors (see below), whose sum is σ = 290377003410. Its totient is φ = 134020155408.

The previous prime is 201030233119. The next prime is 201030233123. The reversal of 201030233121 is 121332030102.

201030233121 is a `hidden beast` number, since 2 + 0 + 10 + 302 + 331 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (201030233119) and next prime (201030233123).

It can be written as a sum of positive squares in only one way, i.e., 131986890000 + 69043343121 = 363300^2 + 262761^2 .

It is not a de Polignac number, because 201030233121 - 2¹ = 201030233119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201030233094 and 201030233103.

It is not an unprimeable number, because it can be changed into a prime (201030233123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11168346276 + ... + 11168346293.

It is an arithmetic number, because the mean of its divisors is an integer number (48396167235).

Almost surely, 2^201030233121 is an apocalyptic number.

It is an amenable number.

201030233121 is a deficient number, since it is larger than the sum of its proper divisors (89346770289).

201030233121 is a wasteful number, since it uses less digits than its factorization.

201030233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22336692575 (or 22336692572 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 201030233121 its reverse (121332030102), we get a palindrome (322362263223).

The spelling of 201030233121 in words is "two hundred one billion, thirty million, two hundred thirty-three thousand, one hundred twenty-one".