20120031103 has 8 divisors (see below), whose sum is σ = 20999454048. Its totient is φ = 19240994784.

The previous prime is 20120031101. The next prime is 20120031119. The reversal of 20120031103 is 30113002102.

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 20120031103 - 2¹ = 20120031101 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 (20120031101) 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, 12325 + ... + 200977.

It is an arithmetic number, because the mean of its divisors is an integer number (2624931756).

Almost surely, 2^20120031103 is an apocalyptic number.

20120031103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20120031103 is a deficient number, since it is larger than the sum of its proper divisors (879422945).

20120031103 is a wasteful number, since it uses less digits than its factorization.

20120031103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193313.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20120031103 its reverse (30113002102), we get a palindrome (50233033205).

The spelling of 20120031103 in words is "twenty billion, one hundred twenty million, thirty-one thousand, one hundred three".