130233121 has 4 divisors (see below), whose sum is σ = 131095744. Its totient is φ = 129370500.

The previous prime is 130233101. The next prime is 130233127. The reversal of 130233121 is 121332031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121332031 = 1741 ⋅69691.

It is a cyclic number.

It is not a de Polignac number, because 130233121 - 2¹⁹ = 129708833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130233095 and 130233104.

It is not an unprimeable number, because it can be changed into a prime (130233127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431085 + ... + 431386.

It is an arithmetic number, because the mean of its divisors is an integer number (32773936).

Almost surely, 2^130233121 is an apocalyptic number.

It is an amenable number.

130233121 is a deficient number, since it is larger than the sum of its proper divisors (862623).

130233121 is an equidigital number, since it uses as much as digits as its factorization.

130233121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862622.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 130233121 is about 11411.9727041384. The cubic root of 130233121 is about 506.8823271575.

Adding to 130233121 its reverse (121332031), we get a palindrome (251565152).

The spelling of 130233121 in words is "one hundred thirty million, two hundred thirty-three thousand, one hundred twenty-one".