10400102134421 has 4 divisors (see below), whose sum is σ = 10400424780492. Its totient is φ = 10399779488352.

The previous prime is 10400102134343. The next prime is 10400102134439. The reversal of 10400102134421 is 12443120100401.

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 8888090064100 + 1512012070321 = 2981290^2 + 1229639^2 .

It is a cyclic number.

It is not a de Polignac number, because 10400102134421 - 2³⁸ = 10125224227477 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 (10400102134451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161274680 + ... + 161339153.

It is an arithmetic number, because the mean of its divisors is an integer number (2600106195123).

Almost surely, 2^{10400102134421} is an apocalyptic number.

It is an amenable number.

10400102134421 is a deficient number, since it is larger than the sum of its proper divisors (322646071).

10400102134421 is an equidigital number, since it uses as much as digits as its factorization.

10400102134421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322646070.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 10400102134421 its reverse (12443120100401), we get a palindrome (22843222234822).

The spelling of 10400102134421 in words is "ten trillion, four hundred billion, one hundred two million, one hundred thirty-four thousand, four hundred twenty-one".