10003256961 has 8 divisors (see below), whose sum is σ = 13349070624. Its totient is φ = 6663140640.

The previous prime is 10003256951. The next prime is 10003256999. The reversal of 10003256961 is 16965230001.

It is a happy number.

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

It is not a de Polignac number, because 10003256961 - 2⁷ = 10003256833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10003256911) 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, 1420236 + ... + 1427261.

It is an arithmetic number, because the mean of its divisors is an integer number (1668633828).

Almost surely, 2^10003256961 is an apocalyptic number.

It is an amenable number.

10003256961 is a deficient number, since it is larger than the sum of its proper divisors (3345813663).

10003256961 is a wasteful number, since it uses less digits than its factorization.

10003256961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848671.

The product of its (nonzero) digits is 9720, while the sum is 33.

Adding to 10003256961 its reverse (16965230001), we get a palindrome (26968486962).

The spelling of 10003256961 in words is "ten billion, three million, two hundred fifty-six thousand, nine hundred sixty-one".