10111343021 has 8 divisors (see below), whose sum is σ = 11094594840. Its totient is φ = 9157442112.

The previous prime is 10111343009. The next prime is 10111343023. The reversal of 10111343021 is 12034311101.

It can be written as a sum of positive squares in 4 ways, for example, as 43428100 + 10067914921 = 6590^2 + 100339^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10111343021 - 2³⁰ = 9037601197 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 (10111343023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7337006 + ... + 7338383.

It is an arithmetic number, because the mean of its divisors is an integer number (1386824355).

Almost surely, 2^10111343021 is an apocalyptic number.

It is an amenable number.

10111343021 is a deficient number, since it is larger than the sum of its proper divisors (983251819).

10111343021 is a wasteful number, since it uses less digits than its factorization.

10111343021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14675455.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10111343021 its reverse (12034311101), we get a palindrome (22145654122).

The spelling of 10111343021 in words is "ten billion, one hundred eleven million, three hundred forty-three thousand, twenty-one".