1530231031 has 8 divisors (see below), whose sum is σ = 1749603744. Its totient is φ = 1311050400.

The previous prime is 1530231019. The next prime is 1530231041. The reversal of 1530231031 is 1301320351.

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 1530231031 - 2¹¹ = 1530228983 is a prime.

It is a super-2 number, since 2×1530231031² = 4683214016470645922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530231011) 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, 30520 + ... + 63181.

It is an arithmetic number, because the mean of its divisors is an integer number (218700468).

Almost surely, 2^1530231031 is an apocalyptic number.

1530231031 is a deficient number, since it is larger than the sum of its proper divisors (219372713).

1530231031 is an equidigital number, since it uses as much as digits as its factorization.

1530231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96041.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1530231031 is about 39118.1675312124. The cubic root of 1530231031 is about 1152.3533487092.

Adding to 1530231031 its reverse (1301320351), we get a palindrome (2831551382).

The spelling of 1530231031 in words is "one billion, five hundred thirty million, two hundred thirty-one thousand, thirty-one".