12030303131 has 32 divisors (see below), whose sum is σ = 16332710400. Its totient is φ = 8574612480.

The previous prime is 12030303091. The next prime is 12030303133. The reversal of 12030303131 is 13130303021.

It is a de Polignac number, because none of the positive numbers 2^k-12030303131 is a prime.

It is a super-2 number, since 2×12030303131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12030303133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99350 + ... + 184203.

It is an arithmetic number, because the mean of its divisors is an integer number (510397200).

Almost surely, 2^12030303131 is an apocalyptic number.

12030303131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12030303131 is a deficient number, since it is larger than the sum of its proper divisors (4302407269).

12030303131 is a wasteful number, since it uses less digits than its factorization.

12030303131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283619.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 12030303131 its reverse (13130303021), we get a palindrome (25160606152).

The spelling of 12030303131 in words is "twelve billion, thirty million, three hundred three thousand, one hundred thirty-one".