13531212034 has 4 divisors (see below), whose sum is σ = 20296818054. Its totient is φ = 6765606016.

The previous prime is 13531211971. The next prime is 13531212047. The reversal of 13531212034 is 43021213531.

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: 43021213531 = 41 ⋅1049297891.

It can be written as a sum of positive squares in only one way, i.e., 12881115025 + 650097009 = 113495^2 + 25497^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3382803007 + ... + 3382803010.

Almost surely, 2^13531212034 is an apocalyptic number.

13531212034 is a deficient number, since it is larger than the sum of its proper divisors (6765606020).

13531212034 is an equidigital number, since it uses as much as digits as its factorization.

13531212034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6765606019.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 13531212034 its reverse (43021213531), we get a palindrome (56552425565).

The spelling of 13531212034 in words is "thirteen billion, five hundred thirty-one million, two hundred twelve thousand, thirty-four".