10402142243 has 4 divisors (see below), whose sum is σ = 10405981968. Its totient is φ = 10398302520.

The previous prime is 10402142221. The next prime is 10402142263. The reversal of 10402142243 is 34224120401.

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

It is a cyclic number.

It is not a de Polignac number, because 10402142243 - 2¹⁰ = 10402141219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10402142213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1915796 + ... + 1921217.

It is an arithmetic number, because the mean of its divisors is an integer number (2601495492).

Almost surely, 2^10402142243 is an apocalyptic number.

10402142243 is a deficient number, since it is larger than the sum of its proper divisors (3839725).

10402142243 is an equidigital number, since it uses as much as digits as its factorization.

10402142243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839724.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 10402142243 its reverse (34224120401), we get a palindrome (44626262644).

The spelling of 10402142243 in words is "ten billion, four hundred two million, one hundred forty-two thousand, two hundred forty-three".