2123103120113 has 6 divisors (see below), whose sum is σ = 2193799582962. Its totient is φ = 2054615921760.

The previous prime is 2123103120109. The next prime is 2123103120119. The reversal of 2123103120113 is 3110213013212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2071849329664 + 51253790449 = 1439392^2 + 226393^2 .

It is not a de Polignac number, because 2123103120113 - 2² = 2123103120109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123103120119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1104631256 + ... + 1104633177.

It is an arithmetic number, because the mean of its divisors is an integer number (365633263827).

Almost surely, 2^{2123103120113} is an apocalyptic number.

It is an amenable number.

2123103120113 is a deficient number, since it is larger than the sum of its proper divisors (70696462849).

2123103120113 is an equidigital number, since it uses as much as digits as its factorization.

2123103120113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209264495 (or 2209264464 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2123103120113 its reverse (3110213013212), we get a palindrome (5233316133325).

The spelling of 2123103120113 in words is "two trillion, one hundred twenty-three billion, one hundred three million, one hundred twenty thousand, one hundred thirteen".