123130030111 has 16 divisors (see below), whose sum is σ = 134518595328. Its totient is φ = 111774096000.

The previous prime is 123130030097. The next prime is 123130030123. The reversal of 123130030111 is 111030031321.

It is a cyclic number.

It is not a de Polignac number, because 123130030111 - 2¹⁹ = 123129505823 is a prime.

It is a super-2 number, since 2×123130030111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123130030141) 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, 40145200 + ... + 40148266.

It is an arithmetic number, because the mean of its divisors is an integer number (8407412208).

Almost surely, 2^123130030111 is an apocalyptic number.

123130030111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123130030111 is a deficient number, since it is larger than the sum of its proper divisors (11388565217).

123130030111 is a wasteful number, since it uses less digits than its factorization.

123130030111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7182.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 123130030111 its reverse (111030031321), we get a palindrome (234160061432).

The spelling of 123130030111 in words is "one hundred twenty-three billion, one hundred thirty million, thirty thousand, one hundred eleven".