13235313451 has 4 divisors (see below), whose sum is σ = 13691703600. Its totient is φ = 12778923304.

The previous prime is 13235313419. The next prime is 13235313463. The reversal of 13235313451 is 15431353231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15431353231 = 7 ⋅2204479033.

It is a cyclic number.

It is not a de Polignac number, because 13235313451 - 2⁵ = 13235313419 is a prime.

It is a super-4 number, since 4×13235313451⁴ (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13235313491) 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, 228195031 + ... + 228195088.

It is an arithmetic number, because the mean of its divisors is an integer number (3422925900).

Almost surely, 2^13235313451 is an apocalyptic number.

13235313451 is a deficient number, since it is larger than the sum of its proper divisors (456390149).

13235313451 is an equidigital number, since it uses as much as digits as its factorization.

13235313451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456390148.

The product of its digits is 16200, while the sum is 31.

Adding to 13235313451 its reverse (15431353231), we get a palindrome (28666666682).

The spelling of 13235313451 in words is "thirteen billion, two hundred thirty-five million, three hundred thirteen thousand, four hundred fifty-one".