10253121511 has 4 divisors (see below), whose sum is σ = 10327961952. Its totient is φ = 10178281072.

The previous prime is 10253121503. The next prime is 10253121533. The reversal of 10253121511 is 11512135201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11512135201 = 7 ⋅1644590743.

It is a cyclic number.

It is not a de Polignac number, because 10253121511 - 2³ = 10253121503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10253121551) 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, 37420015 + ... + 37420288.

It is an arithmetic number, because the mean of its divisors is an integer number (2581990488).

Almost surely, 2^10253121511 is an apocalyptic number.

10253121511 is a deficient number, since it is larger than the sum of its proper divisors (74840441).

10253121511 is an equidigital number, since it uses as much as digits as its factorization.

10253121511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74840440.

The product of its (nonzero) digits is 300, while the sum is 22.

Adding to 10253121511 its reverse (11512135201), we get a palindrome (21765256712).

The spelling of 10253121511 in words is "ten billion, two hundred fifty-three million, one hundred twenty-one thousand, five hundred eleven".