10402111105 has 4 divisors (see below), whose sum is σ = 12482533332. Its totient is φ = 8321688880.

The previous prime is 10402111081. The next prime is 10402111151. The reversal of 10402111105 is 50111120401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6997155201 + 3404955904 = 83649^2 + 58352^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10402111105 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1040211106 + ... + 1040211115.

It is an arithmetic number, because the mean of its divisors is an integer number (3120633333).

Almost surely, 2^10402111105 is an apocalyptic number.

It is an amenable number.

10402111105 is a deficient number, since it is larger than the sum of its proper divisors (2080422227).

10402111105 is an equidigital number, since it uses as much as digits as its factorization.

10402111105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080422226.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 10402111105 its reverse (50111120401), we get a palindrome (60513231506).

The spelling of 10402111105 in words is "ten billion, four hundred two million, one hundred eleven thousand, one hundred five".