130000021121 has 16 divisors (see below), whose sum is σ = 135084801600. Its totient is φ = 124955880000.

The previous prime is 130000021097. The next prime is 130000021133. The reversal of 130000021121 is 121120000031.

It is a cyclic number.

It is not a de Polignac number, because 130000021121 - 2²⁶ = 129932912257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130000021171) 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 15 ways as a sum of consecutive naturals, for example, 23501126 + ... + 23506656.

It is an arithmetic number, because the mean of its divisors is an integer number (8442800100).

Almost surely, 2^130000021121 is an apocalyptic number.

It is an amenable number.

130000021121 is a deficient number, since it is larger than the sum of its proper divisors (5084780479).

130000021121 is a wasteful number, since it uses less digits than its factorization.

130000021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9040.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 130000021121 its reverse (121120000031), we get a palindrome (251120021152).

The spelling of 130000021121 in words is "one hundred thirty billion, twenty-one thousand, one hundred twenty-one".