112121112103 has 128 divisors (see below), whose sum is σ = 160972406784. Its totient is φ = 75256473600.

The previous prime is 112121112101. The next prime is 112121112113. The reversal of 112121112103 is 301211121211.

It is a happy number.

It is not a de Polignac number, because 112121112103 - 2¹ = 112121112101 is a prime.

It is a super-2 number, since 2×112121112103² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121112101) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 184713226 + ... + 184713832.

It is an arithmetic number, because the mean of its divisors is an integer number (1257596928).

Almost surely, 2^112121112103 is an apocalyptic number.

112121112103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

112121112103 is a deficient number, since it is larger than the sum of its proper divisors (48851294681).

112121112103 is a wasteful number, since it uses less digits than its factorization.

112121112103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 112121112103 its reverse (301211121211), we get a palindrome (413332233314).

The spelling of 112121112103 in words is "one hundred twelve billion, one hundred twenty-one million, one hundred twelve thousand, one hundred three".