30113019 has 8 divisors (see below), whose sum is σ = 44611920. Its totient is φ = 20075328.

The previous prime is 30113009. The next prime is 30113023. The reversal of 30113019 is 91031103.

It is not a de Polignac number, because 30113019 - 2⁵ = 30112987 is a prime.

It is a super-2 number, since 2×30113019² = 1813587826588722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30112992 and 30113010.

It is not an unprimeable number, because it can be changed into a prime (30113009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557622 + ... + 557675.

It is an arithmetic number, because the mean of its divisors is an integer number (5576490).

Almost surely, 2^30113019 is an apocalyptic number.

30113019 is a deficient number, since it is larger than the sum of its proper divisors (14498901).

30113019 is a wasteful number, since it uses less digits than its factorization.

30113019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115306 (or 1115300 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 30113019 is about 5487.5330522923. The cubic root of 30113019 is about 311.1129575240.

The spelling of 30113019 in words is "thirty million, one hundred thirteen thousand, nineteen".