12131021030 has 16 divisors (see below), whose sum is σ = 22588798320. Its totient is φ = 4685083872.

The previous prime is 12131021027. The next prime is 12131021033. The reversal of 12131021030 is 3012013121.

It is an interprime number because it is at equal distance from previous prime (12131021027) and next prime (12131021033).

It is a junction number, because it is equal to n+sod(n) for n = 12131020996 and 12131021014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131021033) 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, 20915264 + ... + 20915843.

It is an arithmetic number, because the mean of its divisors is an integer number (1411799895).

Almost surely, 2^12131021030 is an apocalyptic number.

12131021030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12131021030 is a deficient number, since it is larger than the sum of its proper divisors (10457777290).

12131021030 is a wasteful number, since it uses less digits than its factorization.

12131021030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41831143.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12131021030 its reverse (3012013121), we get a palindrome (15143034151).

The spelling of 12131021030 in words is "twelve billion, one hundred thirty-one million, twenty-one thousand, thirty".