201302121131 has 4 divisors (see below), whose sum is σ = 213143422392. Its totient is φ = 189460819872.

The previous prime is 201302121109. The next prime is 201302121169. The reversal of 201302121131 is 131121203102.

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 201302121131 - 2⁶ = 201302121067 is a prime.

It is a super-2 number, since 2×201302121131² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 11841301243 = 201302121131 / (2 + 0 + 1 + 3 + 0 + 2 + 1 + 2 + 1 + 1 + 3 + 1).

It is not an unprimeable number, because it can be changed into a prime (201302121431) 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, 5920650605 + ... + 5920650638.

It is an arithmetic number, because the mean of its divisors is an integer number (53285855598).

Almost surely, 2^201302121131 is an apocalyptic number.

201302121131 is a deficient number, since it is larger than the sum of its proper divisors (11841301261).

201302121131 is a wasteful number, since it uses less digits than its factorization.

201302121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11841301260.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201302121131 its reverse (131121203102), we get a palindrome (332423324233).

The spelling of 201302121131 in words is "two hundred one billion, three hundred two million, one hundred twenty-one thousand, one hundred thirty-one".