30131133 has 16 divisors (see below), whose sum is σ = 41068800. Its totient is φ = 19644480.

The previous prime is 30131113. The next prime is 30131137. The reversal of 30131133 is 33113103.

It is not a de Polignac number, because 30131133 - 2⁶ = 30131069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41548 + ... + 42266.

It is an arithmetic number, because the mean of its divisors is an integer number (2566800).

Almost surely, 2^30131133 is an apocalyptic number.

It is an amenable number.

30131133 is a deficient number, since it is larger than the sum of its proper divisors (10937667).

30131133 is a wasteful number, since it uses less digits than its factorization.

30131133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 30131133 is about 5489.1832725825. The cubic root of 30131133 is about 311.1753266775.

Adding to 30131133 its reverse (33113103), we get a palindrome (63244236).

The spelling of 30131133 in words is "thirty million, one hundred thirty-one thousand, one hundred thirty-three".