20103101123 has 16 divisors (see below), whose sum is σ = 23784536064. Its totient is φ = 16627265280.

The previous prime is 20103101101. The next prime is 20103101129. The reversal of 20103101123 is 32110130102.

It is a cyclic number.

It is not a de Polignac number, because 20103101123 - 2¹⁴ = 20103084739 is a prime.

It is a super-2 number, since 2×20103101123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20103101098 and 20103101107.

It is not an unprimeable number, because it can be changed into a prime (20103101129) 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, 58190 + ... + 208787.

It is an arithmetic number, because the mean of its divisors is an integer number (1486533504).

Almost surely, 2^20103101123 is an apocalyptic number.

20103101123 is a deficient number, since it is larger than the sum of its proper divisors (3681434941).

20103101123 is a wasteful number, since it uses less digits than its factorization.

20103101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267362.

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

Adding to 20103101123 its reverse (32110130102), we get a palindrome (52213231225).

The spelling of 20103101123 in words is "twenty billion, one hundred three million, one hundred one thousand, one hundred twenty-three".