3130021231 has 4 divisors (see below), whose sum is σ = 3133691512. Its totient is φ = 3126350952.

The previous prime is 3130021229. The next prime is 3130021273. The reversal of 3130021231 is 1321200313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1321200313 = 479 ⋅2758247.

It is a cyclic number.

It is not a de Polignac number, because 3130021231 - 2¹ = 3130021229 is a prime.

It is a super-2 number, since 2×3130021231² = 19594065813021510722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130021201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1833861 + ... + 1835566.

It is an arithmetic number, because the mean of its divisors is an integer number (783422878).

Almost surely, 2^3130021231 is an apocalyptic number.

3130021231 is a deficient number, since it is larger than the sum of its proper divisors (3670281).

3130021231 is an equidigital number, since it uses as much as digits as its factorization.

3130021231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670280.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3130021231 is about 55946.5926665780. The cubic root of 3130021231 is about 1462.7914990683.

Adding to 3130021231 its reverse (1321200313), we get a palindrome (4451221544).

The spelling of 3130021231 in words is "three billion, one hundred thirty million, twenty-one thousand, two hundred thirty-one".