10545113321 has 4 divisors (see below), whose sum is σ = 10545735312. Its totient is φ = 10544491332.

The previous prime is 10545113309. The next prime is 10545113329. The reversal of 10545113321 is 12331154501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12331154501 = 31151 ⋅395851.

It is a cyclic number.

It is not a de Polignac number, because 10545113321 - 2¹⁴ = 10545096937 is a prime.

It is a super-2 number, since 2×10545113321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10545113329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284831 + ... + 319716.

It is an arithmetic number, because the mean of its divisors is an integer number (2636433828).

Almost surely, 2^10545113321 is an apocalyptic number.

It is an amenable number.

10545113321 is a deficient number, since it is larger than the sum of its proper divisors (621991).

10545113321 is an equidigital number, since it uses as much as digits as its factorization.

10545113321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621990.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 10545113321 its reverse (12331154501), we get a palindrome (22876267822).

The spelling of 10545113321 in words is "ten billion, five hundred forty-five million, one hundred thirteen thousand, three hundred twenty-one".