10531391322 has 32 divisors (see below), whose sum is σ = 21428789760. Its totient is φ = 3449512880.

The previous prime is 10531391309. The next prime is 10531391347. The reversal of 10531391322 is 22319313501.

It is a super-2 number, since 2×10531391322² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10531391322.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1124953 + ... + 1134275.

It is an arithmetic number, because the mean of its divisors is an integer number (669649680).

Almost surely, 2^10531391322 is an apocalyptic number.

10531391322 is an abundant number, since it is smaller than the sum of its proper divisors (10897398438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10531391322 is a wasteful number, since it uses less digits than its factorization.

10531391322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12578.

The product of its (nonzero) digits is 4860, while the sum is 30.

The spelling of 10531391322 in words is "ten billion, five hundred thirty-one million, three hundred ninety-one thousand, three hundred twenty-two".