12130133021 has 16 divisors (see below), whose sum is σ = 12896769840. Its totient is φ = 11387174400.

The previous prime is 12130133017. The next prime is 12130133051. The reversal of 12130133021 is 12033103121.

It can be written as a sum of positive squares in 8 ways, for example, as 1412707396 + 10717425625 = 37586^2 + 103525^2 .

It is a cyclic number.

It is not a de Polignac number, because 12130133021 - 2² = 12130133017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130133011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1929335 + ... + 1935611.

It is an arithmetic number, because the mean of its divisors is an integer number (806048115).

Almost surely, 2^12130133021 is an apocalyptic number.

It is an amenable number.

12130133021 is a deficient number, since it is larger than the sum of its proper divisors (766636819).

12130133021 is a wasteful number, since it uses less digits than its factorization.

12130133021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8144.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12130133021 its reverse (12033103121), we get a palindrome (24163236142).

The spelling of 12130133021 in words is "twelve billion, one hundred thirty million, one hundred thirty-three thousand, twenty-one".