1030113232121 has 4 divisors (see below), whose sum is σ = 1030134406644. Its totient is φ = 1030092057600.

The previous prime is 1030113232091. The next prime is 1030113232129. The reversal of 1030113232121 is 1212323110301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 991378662400 + 38734569721 = 995680^2 + 196811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1030113232121 is a prime.

It is a super-2 number, since 2×1030113232121² (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 = 1030113232093 and 1030113232102.

It is not an unprimeable number, because it can be changed into a prime (1030113232129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10514120 + ... + 10611641.

It is an arithmetic number, because the mean of its divisors is an integer number (257533601661).

Almost surely, 2^{1030113232121} is an apocalyptic number.

It is an amenable number.

1030113232121 is a deficient number, since it is larger than the sum of its proper divisors (21174523).

1030113232121 is an equidigital number, since it uses as much as digits as its factorization.

1030113232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21174522.

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

Adding to 1030113232121 its reverse (1212323110301), we get a palindrome (2242436342422).

The spelling of 1030113232121 in words is "one trillion, thirty billion, one hundred thirteen million, two hundred thirty-two thousand, one hundred twenty-one".