12021023003 has 16 divisors (see below), whose sum is σ = 13497466752. Its totient is φ = 10611048000.

The previous prime is 12021022967. The next prime is 12021023029. The reversal of 12021023003 is 30032012021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12021023003 - 2¹² = 12021018907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12021023033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32000 + ... + 158322.

It is an arithmetic number, because the mean of its divisors is an integer number (843591672).

Almost surely, 2^12021023003 is an apocalyptic number.

12021023003 is a deficient number, since it is larger than the sum of its proper divisors (1476443749).

12021023003 is a wasteful number, since it uses less digits than its factorization.

12021023003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126586.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12021023003 its reverse (30032012021), we get a palindrome (42053035024).

The spelling of 12021023003 in words is "twelve billion, twenty-one million, twenty-three thousand, three".