12031021032130 has 64 divisors (see below), whose sum is σ = 23159372544000. Its totient is φ = 4486749029568.

The previous prime is 12031021032109. The next prime is 12031021032139. The reversal of 12031021032130 is 3123012013021.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 12031021032098 and 12031021032107.

It is not an unprimeable number, because it can be changed into a prime (12031021032139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3302641 + ... + 5913499.

It is an arithmetic number, because the mean of its divisors is an integer number (361865196000).

Almost surely, 2^{12031021032130} is an apocalyptic number.

12031021032130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12031021032130 is a deficient number, since it is larger than the sum of its proper divisors (11128351511870).

12031021032130 is a wasteful number, since it uses less digits than its factorization.

12031021032130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611271.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12031021032130 its reverse (3123012013021), we get a palindrome (15154033045151).

The spelling of 12031021032130 in words is "twelve trillion, thirty-one billion, twenty-one million, thirty-two thousand, one hundred thirty".