1013123673 has 16 divisors (see below), whose sum is σ = 1529245440. Its totient is φ = 662671152.

The previous prime is 1013123663. The next prime is 1013123707. The reversal of 1013123673 is 3763213101.

It is not a de Polignac number, because 1013123673 - 2⁵ = 1013123641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1013123663) 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, 352561 + ... + 355422.

It is an arithmetic number, because the mean of its divisors is an integer number (95577840).

Almost surely, 2^1013123673 is an apocalyptic number.

It is an amenable number.

1013123673 is a deficient number, since it is larger than the sum of its proper divisors (516121767).

1013123673 is an equidigital number, since it uses as much as digits as its factorization.

1013123673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708045 (or 708039 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1013123673 is about 31829.6037204361. The cubic root of 1013123673 is about 1004.3555592275.

Adding to 1013123673 its reverse (3763213101), we get a palindrome (4776336774).

The spelling of 1013123673 in words is "one billion, thirteen million, one hundred twenty-three thousand, six hundred seventy-three".