1531013113 has 8 divisors (see below), whose sum is σ = 1763087040. Its totient is φ = 1302278640.

The previous prime is 1531013087. The next prime is 1531013117. The reversal of 1531013113 is 3113101351.

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 1531013113 - 2⁹ = 1531012601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1531013117) 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, 833878 + ... + 835711.

It is an arithmetic number, because the mean of its divisors is an integer number (220385880).

Almost surely, 2^1531013113 is an apocalyptic number.

It is an amenable number.

1531013113 is a deficient number, since it is larger than the sum of its proper divisors (232073927).

1531013113 is a wasteful number, since it uses less digits than its factorization.

1531013113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669727.

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 1531013113 is about 39128.1626581162. The cubic root of 1531013113 is about 1152.5496330829.

Adding to 1531013113 its reverse (3113101351), we get a palindrome (4644114464).

The spelling of 1531013113 in words is "one billion, five hundred thirty-one million, thirteen thousand, one hundred thirteen".