201121030319 has 4 divisors (see below), whose sum is σ = 219404760360. Its totient is φ = 182837300280.

The previous prime is 201121030307. The next prime is 201121030339. The reversal of 201121030319 is 913030121102.

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 201121030319 - 2⁸ = 201121030063 is a prime.

It is a super-2 number, since 2×201121030319² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201121030294 and 201121030303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121030339) 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, 9141865004 + ... + 9141865025.

It is an arithmetic number, because the mean of its divisors is an integer number (54851190090).

Almost surely, 2^201121030319 is an apocalyptic number.

201121030319 is a deficient number, since it is larger than the sum of its proper divisors (18283730041).

201121030319 is a wasteful number, since it uses less digits than its factorization.

201121030319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18283730040.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 201121030319 in words is "two hundred one billion, one hundred twenty-one million, thirty thousand, three hundred nineteen".