10531771321 has 16 divisors (see below), whose sum is σ = 10784592000. Its totient is φ = 10282912128.

The previous prime is 10531771309. The next prime is 10531771363. The reversal of 10531771321 is 12317713501.

It is a cyclic number.

It is not a de Polignac number, because 10531771321 - 2¹³ = 10531763129 is a prime.

It is a super-2 number, since 2×10531771321² (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 (10531711321) 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, 2130765 + ... + 2135701.

It is an arithmetic number, because the mean of its divisors is an integer number (674037000).

Almost surely, 2^10531771321 is an apocalyptic number.

It is an amenable number.

10531771321 is a deficient number, since it is larger than the sum of its proper divisors (252820679).

10531771321 is a wasteful number, since it uses less digits than its factorization.

10531771321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5328.

The product of its (nonzero) digits is 4410, while the sum is 31.

The spelling of 10531771321 in words is "ten billion, five hundred thirty-one million, seven hundred seventy-one thousand, three hundred twenty-one".