10203012012103 has 4 divisors (see below), whose sum is σ = 10203472230568. Its totient is φ = 10202551793640.

The previous prime is 10203012012079. The next prime is 10203012012119. The reversal of 10203012012103 is 30121021030201.

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 10203012012103 - 2²⁵ = 10202978457671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203012012703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230075976 + ... + 230120317.

It is an arithmetic number, because the mean of its divisors is an integer number (2550868057642).

Almost surely, 2^{10203012012103} is an apocalyptic number.

10203012012103 is a deficient number, since it is larger than the sum of its proper divisors (460218465).

10203012012103 is an equidigital number, since it uses as much as digits as its factorization.

10203012012103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460218464.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10203012012103 its reverse (30121021030201), we get a palindrome (40324033042304).

The spelling of 10203012012103 in words is "ten trillion, two hundred three billion, twelve million, twelve thousand, one hundred three".