1201020001203 has 8 divisors (see below), whose sum is σ = 1746938183616. Its totient is φ = 727890909800.

The previous prime is 1201020001193. The next prime is 1201020001231. The reversal of 1201020001203 is 3021000201021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201020001203 - 2¹⁰ = 1201020000179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201020001253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18197272713 + ... + 18197272778.

It is an arithmetic number, because the mean of its divisors is an integer number (218367272952).

Almost surely, 2^{1201020001203} is an apocalyptic number.

1201020001203 is a deficient number, since it is larger than the sum of its proper divisors (545918182413).

1201020001203 is a wasteful number, since it uses less digits than its factorization.

1201020001203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36394545505.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1201020001203 its reverse (3021000201021), we get a palindrome (4222020202224).

The spelling of 1201020001203 in words is "one trillion, two hundred one billion, twenty million, one thousand, two hundred three".