1203142020103 has 4 divisors (see below), whose sum is σ = 1209249340200. Its totient is φ = 1197034700008.

The previous prime is 1203142020089. The next prime is 1203142020109. The reversal of 1203142020103 is 3010202413021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1203142020103 - 2⁵ = 1203142020071 is a prime.

It is a super-2 number, since 2×1203142020103² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203142020109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3053659753 + ... + 3053660146.

It is an arithmetic number, because the mean of its divisors is an integer number (302312335050).

Almost surely, 2^{1203142020103} is an apocalyptic number.

1203142020103 is a deficient number, since it is larger than the sum of its proper divisors (6107320097).

1203142020103 is an equidigital number, since it uses as much as digits as its factorization.

1203142020103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6107320096.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1203142020103 its reverse (3010202413021), we get a palindrome (4213344433124).

The spelling of 1203142020103 in words is "one trillion, two hundred three billion, one hundred forty-two million, twenty thousand, one hundred three".