1200421423103 has 32 divisors (see below), whose sum is σ = 1444985991168. Its totient is φ = 975603916800.

The previous prime is 1200421423067. The next prime is 1200421423109. The reversal of 1200421423103 is 3013241240021.

It is a cyclic number.

It is not a de Polignac number, because 1200421423103 - 2¹⁸ = 1200421160959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200421423109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3225476 + ... + 3578342.

It is an arithmetic number, because the mean of its divisors is an integer number (45155812224).

Almost surely, 2^{1200421423103} is an apocalyptic number.

1200421423103 is a deficient number, since it is larger than the sum of its proper divisors (244564568065).

1200421423103 is a wasteful number, since it uses less digits than its factorization.

1200421423103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353223.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1200421423103 its reverse (3013241240021), we get a palindrome (4213662663124).

The spelling of 1200421423103 in words is "one trillion, two hundred billion, four hundred twenty-one million, four hundred twenty-three thousand, one hundred three".