33113130 has 32 divisors (see below), whose sum is σ = 79627968. Its totient is φ = 8812800.

The previous prime is 33113111. The next prime is 33113131. The reversal of 33113130 is 3131133.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (33113131) 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, 23650 + ... + 25010.

It is an arithmetic number, because the mean of its divisors is an integer number (2488374).

Almost surely, 2^33113130 is an apocalyptic number.

33113130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33113130 is an abundant number, since it is smaller than the sum of its proper divisors (46514838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33113130 is a wasteful number, since it uses less digits than its factorization.

33113130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182.

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

The square root of 33113130 is about 5754.4009245099. The cubic root of 33113130 is about 321.1195486431.

Adding to 33113130 its reverse (3131133), we get a palindrome (36244263).

It can be divided in two parts, 3311 and 3130, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 33113130 in words is "thirty-three million, one hundred thirteen thousand, one hundred thirty".