10280423421 has 8 divisors (see below), whose sum is σ = 15230256960. Its totient is φ = 6853615596.

The previous prime is 10280423401. The next prime is 10280423429. The reversal of 10280423421 is 12432408201.

10280423421 is a `hidden beast` number, since 1 + 0 + 280 + 42 + 342 + 1 = 666.

It is not a de Polignac number, because 10280423421 - 2⁵ = 10280423389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 380756423 = 10280423421 / (1 + 0 + 2 + 8 + 0 + 4 + 2 + 3 + 4 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10280423429) 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, 190378185 + ... + 190378238.

It is an arithmetic number, because the mean of its divisors is an integer number (1903782120).

Almost surely, 2^10280423421 is an apocalyptic number.

It is an amenable number.

10280423421 is a deficient number, since it is larger than the sum of its proper divisors (4949833539).

10280423421 is an equidigital number, since it uses as much as digits as its factorization.

10280423421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380756432 (or 380756426 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The spelling of 10280423421 in words is "ten billion, two hundred eighty million, four hundred twenty-three thousand, four hundred twenty-one".