130121024021 has 16 divisors (see below), whose sum is σ = 140170854144. Its totient is φ = 120472095744.

The previous prime is 130121023979. The next prime is 130121024041. The reversal of 130121024021 is 120420121031.

It is a cyclic number.

It is not a de Polignac number, because 130121024021 - 2⁶ = 130121023957 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 (130121024041) 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, 231881 + ... + 560366.

It is an arithmetic number, because the mean of its divisors is an integer number (8760678384).

Almost surely, 2^130121024021 is an apocalyptic number.

It is an amenable number.

130121024021 is a deficient number, since it is larger than the sum of its proper divisors (10049830123).

130121024021 is a wasteful number, since it uses less digits than its factorization.

130121024021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792500.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 130121024021 its reverse (120420121031), we get a palindrome (250541145052).

It can be divided in two parts, 1301210 and 24021, that added together give a palindrome (1325231).

The spelling of 130121024021 in words is "one hundred thirty billion, one hundred twenty-one million, twenty-four thousand, twenty-one".