1201130131 has 4 divisors (see below), whose sum is σ = 1201206592. Its totient is φ = 1201053672.

The previous prime is 1201130107. The next prime is 1201130143. The reversal of 1201130131 is 1310311021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1310311021 = 18919 ⋅69259.

It is a cyclic number.

It is not a de Polignac number, because 1201130131 - 2²¹ = 1199032979 is a prime.

It is a super-2 number, since 2×1201130131² = 2885427183192154322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1205130131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5091 + ... + 49276.

It is an arithmetic number, because the mean of its divisors is an integer number (300301648).

Almost surely, 2^1201130131 is an apocalyptic number.

1201130131 is a deficient number, since it is larger than the sum of its proper divisors (76461).

1201130131 is an equidigital number, since it uses as much as digits as its factorization.

1201130131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76460.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1201130131 is about 34657.3243485414. The cubic root of 1201130131 is about 1062.9920598999.

Adding to 1201130131 its reverse (1310311021), we get a palindrome (2511441152).

The spelling of 1201130131 in words is "one billion, two hundred one million, one hundred thirty thousand, one hundred thirty-one".