1123010013121 has 16 divisors (see below), whose sum is σ = 1157516873280. Its totient is φ = 1089097876800.

The previous prime is 1123010013089. The next prime is 1123010013133. The reversal of 1123010013121 is 1213100103211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1123010013121 - 2⁵ = 1123010013089 is a prime.

It is a super-2 number, since 2×1123010013121² (a number of 25 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 = 1123010013095 and 1123010013104.

It is not an unprimeable number, because it can be changed into a prime (1123010019121) 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, 1310470 + ... + 1990816.

It is an arithmetic number, because the mean of its divisors is an integer number (72344804580).

Almost surely, 2^{1123010013121} is an apocalyptic number.

It is an amenable number.

1123010013121 is a deficient number, since it is larger than the sum of its proper divisors (34506860159).

1123010013121 is a wasteful number, since it uses less digits than its factorization.

1123010013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680784.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1123010013121 its reverse (1213100103211), we get a palindrome (2336110116332).

The spelling of 1123010013121 in words is "one trillion, one hundred twenty-three billion, ten million, thirteen thousand, one hundred twenty-one".