1200031313103 has 64 divisors (see below), whose sum is σ = 2130654412800. Its totient is φ = 653016349440.

The previous prime is 1200031313101. The next prime is 1200031313113. The reversal of 1200031313103 is 3013131300021.

It is a happy number.

It is not a de Polignac number, because 1200031313103 - 2¹ = 1200031313101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200031313101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1099503 + ... + 1899728.

It is an arithmetic number, because the mean of its divisors is an integer number (33291475200).

Almost surely, 2^{1200031313103} is an apocalyptic number.

1200031313103 is a deficient number, since it is larger than the sum of its proper divisors (930623099697).

1200031313103 is a wasteful number, since it uses less digits than its factorization.

1200031313103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999349 (or 2999343 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1200031313103 its reverse (3013131300021), we get a palindrome (4213162613124).

The spelling of 1200031313103 in words is "one trillion, two hundred billion, thirty-one million, three hundred thirteen thousand, one hundred three".