20122113103 has 4 divisors (see below), whose sum is σ = 20162117808. Its totient is φ = 20082108400.

The previous prime is 20122113091. The next prime is 20122113107. The reversal of 20122113103 is 30131122102.

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 20122113103 - 2⁵ = 20122113071 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 (20122113107) 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, 20001598 + ... + 20002603.

It is an arithmetic number, because the mean of its divisors is an integer number (5040529452).

Almost surely, 2^20122113103 is an apocalyptic number.

20122113103 is a deficient number, since it is larger than the sum of its proper divisors (40004705).

20122113103 is an equidigital number, since it uses as much as digits as its factorization.

20122113103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40004704.

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

Adding to 20122113103 its reverse (30131122102), we get a palindrome (50253235205).

It can be divided in two parts, 20122 and 113103, that added together give a square (133225 = 365²).

The spelling of 20122113103 in words is "twenty billion, one hundred twenty-two million, one hundred thirteen thousand, one hundred three".