13535512431 has 16 divisors (see below), whose sum is σ = 21014705664. Its totient is φ = 7588642464.

The previous prime is 13535512427. The next prime is 13535512433. The reversal of 13535512431 is 13421553531.

It is not a de Polignac number, because 13535512431 - 2² = 13535512427 is a prime.

It is a super-2 number, since 2×13535512431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13535512392 and 13535512401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13535512433) 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, 6079531 + ... + 6081756.

It is an arithmetic number, because the mean of its divisors is an integer number (1313419104).

Almost surely, 2^13535512431 is an apocalyptic number.

13535512431 is a deficient number, since it is larger than the sum of its proper divisors (7479193233).

13535512431 is a wasteful number, since it uses less digits than its factorization.

13535512431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12161350.

The product of its digits is 27000, while the sum is 33.

The spelling of 13535512431 in words is "thirteen billion, five hundred thirty-five million, five hundred twelve thousand, four hundred thirty-one".