30031101 has 16 divisors (see below), whose sum is σ = 44632000. Its totient is φ = 19957104.

The previous prime is 30031063. The next prime is 30031201. The reversal of 30031101 is 10113003.

It is a de Polignac number, because none of the positive numbers 2^k-30031101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30031201) 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, 7830 + ... + 11016.

It is an arithmetic number, because the mean of its divisors is an integer number (2789500).

Almost surely, 2^30031101 is an apocalyptic number.

It is an amenable number.

30031101 is a deficient number, since it is larger than the sum of its proper divisors (14600899).

30031101 is a wasteful number, since it uses less digits than its factorization.

30031101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545 (or 3539 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 9.

The square root of 30031101 is about 5480.0639594808. The cubic root of 30031101 is about 310.8305891093.

Adding to 30031101 its reverse (10113003), we get a palindrome (40144104).

The spelling of 30031101 in words is "thirty million, thirty-one thousand, one hundred one".