1013113123 has 8 divisors (see below), whose sum is σ = 1116158256. Its totient is φ = 911892000.

The previous prime is 1013113121. The next prime is 1013113141. The reversal of 1013113123 is 3213113101.

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

It is a cyclic number.

It is not a de Polignac number, because 1013113123 - 2¹ = 1013113121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013113097 and 1013113106.

It is not an unprimeable number, because it can be changed into a prime (1013113121) 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, 454836 + ... + 457057.

It is an arithmetic number, because the mean of its divisors is an integer number (139519782).

Almost surely, 2^1013113123 is an apocalyptic number.

1013113123 is a deficient number, since it is larger than the sum of its proper divisors (103045133).

1013113123 is a wasteful number, since it uses less digits than its factorization.

1013113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912005.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1013113123 is about 31829.4379937818. The cubic root of 1013113123 is about 1004.3520729839.

Adding to 1013113123 its reverse (3213113101), we get a palindrome (4226226224).

The spelling of 1013113123 in words is "one billion, thirteen million, one hundred thirteen thousand, one hundred twenty-three".