130121011001 has 4 divisors (see below), whose sum is σ = 130448772132. Its totient is φ = 129793249872.

The previous prime is 130121010991. The next prime is 130121011037. The reversal of 130121011001 is 100110121031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111125556025 + 18995454976 = 333355^2 + 137824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130121011001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130121019001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163879970 + ... + 163880763.

It is an arithmetic number, because the mean of its divisors is an integer number (32612193033).

Almost surely, 2^130121011001 is an apocalyptic number.

It is an amenable number.

130121011001 is a deficient number, since it is larger than the sum of its proper divisors (327761131).

130121011001 is an equidigital number, since it uses as much as digits as its factorization.

130121011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327761130.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 130121011001 its reverse (100110121031), we get a palindrome (230231132032).

The spelling of 130121011001 in words is "one hundred thirty billion, one hundred twenty-one million, eleven thousand, one".