12103211231232 has 96 divisors (see below), whose sum is σ = 35200745929440. Its totient is φ = 3667639746560.

The previous prime is 12103211231203. The next prime is 12103211231239. The reversal of 12103211231232 is 23213211230121.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (12103211231239) 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 7 ways as a sum of consecutive naturals, for example, 89474403 + ... + 89609570.

It is an arithmetic number, because the mean of its divisors is an integer number (366674436765).

Almost surely, 2^{12103211231232} is an apocalyptic number.

12103211231232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12103211231232 is an abundant number, since it is smaller than the sum of its proper divisors (23097534698208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12103211231232 is a wasteful number, since it uses less digits than its factorization.

12103211231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179084009 (or 179083989 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12103211231232 its reverse (23213211230121), we get a palindrome (35316422461353).

The spelling of 12103211231232 in words is "twelve trillion, one hundred three billion, two hundred eleven million, two hundred thirty-one thousand, two hundred thirty-two".