1203121132103 has 8 divisors (see below), whose sum is σ = 1320082463376. Its totient is φ = 1087424248000.

The previous prime is 1203121132099. The next prime is 1203121132123. The reversal of 1203121132103 is 3012311213021.

It is a happy number.

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 1203121132103 - 2² = 1203121132099 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 (1203121132123) 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, 316109798 + ... + 316113603.

It is an arithmetic number, because the mean of its divisors is an integer number (165010307922).

Almost surely, 2^{1203121132103} is an apocalyptic number.

1203121132103 is a deficient number, since it is larger than the sum of its proper divisors (116961331273).

1203121132103 is a wasteful number, since it uses less digits than its factorization.

1203121132103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632223585.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1203121132103 its reverse (3012311213021), we get a palindrome (4215432345124).

The spelling of 1203121132103 in words is "one trillion, two hundred three billion, one hundred twenty-one million, one hundred thirty-two thousand, one hundred three".