1031113001 has 4 divisors (see below), whose sum is σ = 1034632452. Its totient is φ = 1027593552.

The previous prime is 1031112997. The next prime is 1031113021. The reversal of 1031113001 is 1003111301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 521437225 + 509675776 = 22835^2 + 22576^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031113001 - 2² = 1031112997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031113021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1759286 + ... + 1759871.

It is an arithmetic number, because the mean of its divisors is an integer number (258658113).

Almost surely, 2^1031113001 is an apocalyptic number.

It is an amenable number.

1031113001 is a deficient number, since it is larger than the sum of its proper divisors (3519451).

1031113001 is an equidigital number, since it uses as much as digits as its factorization.

1031113001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3519450.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 1031113001 is about 32110.9483042778. The cubic root of 1031113001 is about 1010.2652641163.

Adding to 1031113001 its reverse (1003111301), we get a palindrome (2034224302).

It can be divided in two parts, 103111300 and 1, that added together give a palindrome (103111301).

The spelling of 1031113001 in words is "one billion, thirty-one million, one hundred thirteen thousand, one".