113031019 has 8 divisors (see below), whose sum is σ = 120160080. Its totient is φ = 106020000.

The previous prime is 113031013. The next prime is 113031031. The reversal of 113031019 is 910130311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113031019 - 2¹⁷ = 112899947 is a prime.

It is a super-2 number, since 2×113031019² = 25552022512356722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113030987 and 113031005.

It is not an unprimeable number, because it can be changed into a prime (113031013) 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, 27532 + ... + 31369.

It is an arithmetic number, because the mean of its divisors is an integer number (15020010).

Almost surely, 2^113031019 is an apocalyptic number.

113031019 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

113031019 is a deficient number, since it is larger than the sum of its proper divisors (7129061).

113031019 is a wasteful number, since it uses less digits than its factorization.

113031019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59021.

The product of its (nonzero) digits is 81, while the sum is 19.

The square root of 113031019 is about 10631.6047236530. The cubic root of 113031019 is about 483.5030458584.

The spelling of 113031019 in words is "one hundred thirteen million, thirty-one thousand, nineteen".