1012120031103 has 16 divisors (see below), whose sum is σ = 1350179719680. Its totient is φ = 674403610176.

The previous prime is 1012120031101. The next prime is 1012120031159. The reversal of 1012120031103 is 3011300212101.

It is a happy number.

It is not a de Polignac number, because 1012120031103 - 2¹ = 1012120031101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012120031101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92535451 + ... + 92546387.

It is an arithmetic number, because the mean of its divisors is an integer number (84386232480).

Almost surely, 2^{1012120031103} is an apocalyptic number.

1012120031103 is a deficient number, since it is larger than the sum of its proper divisors (338059688577).

1012120031103 is a wasteful number, since it uses less digits than its factorization.

1012120031103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23806.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1012120031103 its reverse (3011300212101), we get a palindrome (4023420243204).

The spelling of 1012120031103 in words is "one trillion, twelve billion, one hundred twenty million, thirty-one thousand, one hundred three".