1013112345 has 16 divisors (see below), whose sum is σ = 1852548480. Its totient is φ = 463137024.

The previous prime is 1013112343. The next prime is 1013112367. The reversal of 1013112345 is 5432113101.

It is not a de Polignac number, because 1013112345 - 2¹ = 1013112343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1013112343) 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, 4824240 + ... + 4824449.

It is an arithmetic number, because the mean of its divisors is an integer number (115784280).

Almost surely, 2^1013112345 is an apocalyptic number.

1013112345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1013112345 is a deficient number, since it is larger than the sum of its proper divisors (839436135).

1013112345 is an equidigital number, since it uses as much as digits as its factorization.

1013112345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9648704.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1013112345 is about 31829.4257723887. The cubic root of 1013112345 is about 1004.3518158931.

Adding to 1013112345 its reverse (5432113101), we get a palindrome (6445225446).

The spelling of 1013112345 in words is "one billion, thirteen million, one hundred twelve thousand, three hundred forty-five".