10742320421 has 12 divisors (see below), whose sum is σ = 12505348332. Its totient is φ = 9200939328.

The previous prime is 10742320409. The next prime is 10742320441. The reversal of 10742320421 is 12402324701.

It can be written as a sum of positive squares in 2 ways, for example, as 5000469796 + 5741850625 = 70714^2 + 75775^2 .

It is not a de Polignac number, because 10742320421 - 2²² = 10738126117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10742320441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12560 + ... + 147113.

It is an arithmetic number, because the mean of its divisors is an integer number (1042112361).

Almost surely, 2^10742320421 is an apocalyptic number.

It is an amenable number.

10742320421 is a deficient number, since it is larger than the sum of its proper divisors (1763027911).

10742320421 is a wasteful number, since it uses less digits than its factorization.

10742320421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161060 (or 161053 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The spelling of 10742320421 in words is "ten billion, seven hundred forty-two million, three hundred twenty thousand, four hundred twenty-one".