30231129 has 4 divisors (see below), whose sum is σ = 40308176. Its totient is φ = 20154084.

The previous prime is 30231101. The next prime is 30231133. The reversal of 30231129 is 92113203.

It is a happy number.

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.

It is not a de Polignac number, because 30231129 - 2⁸ = 30230873 is a prime.

It is a super-2 number, since 2×30231129² = 1827842321229282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30231829) 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, 5038519 + ... + 5038524.

It is an arithmetic number, because the mean of its divisors is an integer number (10077044).

Almost surely, 2^30231129 is an apocalyptic number.

It is an amenable number.

30231129 is a deficient number, since it is larger than the sum of its proper divisors (10077047).

30231129 is a wasteful number, since it uses less digits than its factorization.

30231129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10077046.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 30231129 is about 5498.2841869078. The cubic root of 30231129 is about 311.5191784390.

The spelling of 30231129 in words is "thirty million, two hundred thirty-one thousand, one hundred twenty-nine".