13531034021 has 8 divisors (see below), whose sum is σ = 14120507520. Its totient is φ = 12941657872.

The previous prime is 13531034017. The next prime is 13531034057. The reversal of 13531034021 is 12043013531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13531034021 - 2² = 13531034017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531034071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503696 + ... + 529878.

It is an arithmetic number, because the mean of its divisors is an integer number (1765063440).

Almost surely, 2^13531034021 is an apocalyptic number.

It is an amenable number.

13531034021 is a deficient number, since it is larger than the sum of its proper divisors (589473499).

13531034021 is a wasteful number, since it uses less digits than its factorization.

13531034021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48675.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 13531034021 its reverse (12043013531), we get a palindrome (25574047552).

The spelling of 13531034021 in words is "thirteen billion, five hundred thirty-one million, thirty-four thousand, twenty-one".