10302013121 has 4 divisors (see below), whose sum is σ = 10470898644. Its totient is φ = 10133127600.

The previous prime is 10302013109. The next prime is 10302013159. The reversal of 10302013121 is 12131020301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12131020301 = 79 ⋅153557219.

It can be written as a sum of positive squares in 2 ways, for example, as 2749534096 + 7552479025 = 52436^2 + 86905^2 .

It is a cyclic number.

It is not a de Polignac number, because 10302013121 - 2¹⁴ = 10301996737 is a prime.

It is a super-2 number, since 2×10302013121² (a number of 21 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 = 10302013096 and 10302013105.

It is not an unprimeable number, because it can be changed into a prime (10302013721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84442670 + ... + 84442791.

It is an arithmetic number, because the mean of its divisors is an integer number (2617724661).

Almost surely, 2^10302013121 is an apocalyptic number.

It is an amenable number.

10302013121 is a deficient number, since it is larger than the sum of its proper divisors (168885523).

10302013121 is an equidigital number, since it uses as much as digits as its factorization.

10302013121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168885522.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10302013121 its reverse (12131020301), we get a palindrome (22433033422).

The spelling of 10302013121 in words is "ten billion, three hundred two million, thirteen thousand, one hundred twenty-one".