130121132121021 has 8 divisors (see below), whose sum is σ = 183700421817984. Its totient is φ = 81644631919040.

The previous prime is 130121132121011. The next prime is 130121132121077. The reversal of 130121132121021 is 120121231121031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130121132121021 - 2²⁷ = 130120997903293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130121132121011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1275697373685 + ... + 1275697373786.

It is an arithmetic number, because the mean of its divisors is an integer number (22962552727248).

Almost surely, 2^{130121132121021} is an apocalyptic number.

It is an amenable number.

130121132121021 is a deficient number, since it is larger than the sum of its proper divisors (53579289696963).

130121132121021 is a wasteful number, since it uses less digits than its factorization.

130121132121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551394747491.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 130121132121021 its reverse (120121231121031), we get a palindrome (250242363242052).

The spelling of 130121132121021 in words is "one hundred thirty trillion, one hundred twenty-one billion, one hundred thirty-two million, one hundred twenty-one thousand, twenty-one".