130030921 has 2 divisors, whose sum is σ = 130030922. Its totient is φ = 130030920.

The previous prime is 130030903. The next prime is 130030939. The reversal of 130030921 is 129030031.

It is a balanced prime because it is at equal distance from previous prime (130030903) and next prime (130030939).

It can be written as a sum of positive squares in only one way, i.e., 124077321 + 5953600 = 11139^2 + 2440^2 .

It is a cyclic number.

It is not a de Polignac number, because 130030921 - 2⁷ = 130030793 is a prime.

It is a super-3 number, since 3×130030921³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (130030961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65015460 + 65015461.

It is an arithmetic number, because the mean of its divisors is an integer number (65015461).

Almost surely, 2^130030921 is an apocalyptic number.

It is an amenable number.

130030921 is a deficient number, since it is larger than the sum of its proper divisors (1).

130030921 is an equidigital number, since it uses as much as digits as its factorization.

130030921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 130030921 is about 11403.1101459207. The cubic root of 130030921 is about 506.6198627030.

Adding to 130030921 its reverse (129030031), we get a palindrome (259060952).

The spelling of 130030921 in words is "one hundred thirty million, thirty thousand, nine hundred twenty-one".