12101021432 has 32 divisors (see below), whose sum is σ = 22836450000. Its totient is φ = 6011366400.

The previous prime is 12101021431. The next prime is 12101021459. The reversal of 12101021432 is 23412010121.

It is a self number, because there is not a number n which added to its sum of digits gives 12101021432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101021431) 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, 1805207 + ... + 1811897.

Almost surely, 2^12101021432 is an apocalyptic number.

It is an amenable number.

12101021432 is a deficient number, since it is larger than the sum of its proper divisors (10735428568).

12101021432 is a wasteful number, since it uses less digits than its factorization.

12101021432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8127 (or 8123 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12101021432 its reverse (23412010121), we get a palindrome (35513031553).

The spelling of 12101021432 in words is "twelve billion, one hundred one million, twenty-one thousand, four hundred thirty-two".