20131120103 has 8 divisors (see below), whose sum is σ = 21210646320. Its totient is φ = 19053593280.

The previous prime is 20131120049. The next prime is 20131120111. The reversal of 20131120103 is 30102113102.

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 20131120103 - 2⁸ = 20131119847 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 (20131120123) 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, 479150 + ... + 519467.

It is an arithmetic number, because the mean of its divisors is an integer number (2651330790).

Almost surely, 2^20131120103 is an apocalyptic number.

20131120103 is a deficient number, since it is larger than the sum of its proper divisors (1079526217).

20131120103 is a wasteful number, since it uses less digits than its factorization.

20131120103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999697.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20131120103 its reverse (30102113102), we get a palindrome (50233233205).

The spelling of 20131120103 in words is "twenty billion, one hundred thirty-one million, one hundred twenty thousand, one hundred three".