10531020979 has 4 divisors (see below), whose sum is σ = 10709512920. Its totient is φ = 10352529040.

The previous prime is 10531020967. The next prime is 10531021003. The reversal of 10531020979 is 97902013501.

10531020979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97902013501 = 61 ⋅1604951041.

It is a cyclic number.

It is not a de Polignac number, because 10531020979 - 2¹³ = 10531012787 is a prime.

It is a super-2 number, since 2×10531020979² (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 (10531020679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89245882 + ... + 89245999.

It is an arithmetic number, because the mean of its divisors is an integer number (2677378230).

Almost surely, 2^10531020979 is an apocalyptic number.

10531020979 is a deficient number, since it is larger than the sum of its proper divisors (178491941).

10531020979 is an equidigital number, since it uses as much as digits as its factorization.

10531020979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178491940.

The product of its (nonzero) digits is 17010, while the sum is 37.

The spelling of 10531020979 in words is "ten billion, five hundred thirty-one million, twenty thousand, nine hundred seventy-nine".