20103140311 has 4 divisors (see below), whose sum is σ = 20155629312. Its totient is φ = 20050651312.

The previous prime is 20103140303. The next prime is 20103140359. The reversal of 20103140311 is 11304130102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20103140311 - 2³ = 20103140303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103140011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26243926 + ... + 26244691.

It is an arithmetic number, because the mean of its divisors is an integer number (5038907328).

Almost surely, 2^20103140311 is an apocalyptic number.

20103140311 is a deficient number, since it is larger than the sum of its proper divisors (52489001).

20103140311 is an equidigital number, since it uses as much as digits as its factorization.

20103140311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52489000.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20103140311 its reverse (11304130102), we get a palindrome (31407270413).

The spelling of 20103140311 in words is "twenty billion, one hundred three million, one hundred forty thousand, three hundred eleven".