1200023212003 has 64 divisors (see below), whose sum is σ = 1592476876800. Its totient is φ = 876632803200.

The previous prime is 1200023211979. The next prime is 1200023212057. The reversal of 1200023212003 is 3002123200021.

It is a de Polignac number, because none of the positive numbers 2^k-1200023212003 is a prime.

It is a super-3 number, since 3×1200023212003³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200023212093) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23587333 + ... + 23638153.

It is an arithmetic number, because the mean of its divisors is an integer number (24882451200).

Almost surely, 2^{1200023212003} is an apocalyptic number.

1200023212003 is a deficient number, since it is larger than the sum of its proper divisors (392453664797).

1200023212003 is a wasteful number, since it uses less digits than its factorization.

1200023212003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51128.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1200023212003 its reverse (3002123200021), we get a palindrome (4202146412024).

The spelling of 1200023212003 in words is "one trillion, two hundred billion, twenty-three million, two hundred twelve thousand, three".