13322156531 has 8 divisors (see below), whose sum is σ = 13905346560. Its totient is φ = 12739297032.

The previous prime is 13322156509. The next prime is 13322156543. The reversal of 13322156531 is 13565122331.

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 13322156531 - 2⁶ = 13322156467 is a prime.

It is a super-2 number, since 2×13322156531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13322156501) 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, 1580 + ... + 163238.

It is an arithmetic number, because the mean of its divisors is an integer number (1738168320).

Almost surely, 2^13322156531 is an apocalyptic number.

13322156531 is a deficient number, since it is larger than the sum of its proper divisors (583190029).

13322156531 is a wasteful number, since it uses less digits than its factorization.

13322156531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165265.

The product of its digits is 16200, while the sum is 32.

Adding to 13322156531 its reverse (13565122331), we get a palindrome (26887278862).

The spelling of 13322156531 in words is "thirteen billion, three hundred twenty-two million, one hundred fifty-six thousand, five hundred thirty-one".