30113031 has 16 divisors (see below), whose sum is σ = 43628256. Its totient is φ = 18364416.

The previous prime is 30113023. The next prime is 30113033. The reversal of 30113031 is 13031103.

It is not a de Polignac number, because 30113031 - 2³ = 30113023 is a prime.

It is a super-2 number, since 2×30113031² = 1813589272013922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30112998 and 30113016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30113033) 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, 991 + ... + 7823.

It is an arithmetic number, because the mean of its divisors is an integer number (2726766).

Almost surely, 2^30113031 is an apocalyptic number.

30113031 is a deficient number, since it is larger than the sum of its proper divisors (13515225).

30113031 is a wasteful number, since it uses less digits than its factorization.

30113031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6962.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 30113031 is about 5487.5341456796. The cubic root of 30113031 is about 311.1129988500.

Adding to 30113031 its reverse (13031103), we get a palindrome (43144134).

The spelling of 30113031 in words is "thirty million, one hundred thirteen thousand, thirty-one".