10021903263 has 12 divisors (see below), whose sum is σ = 14481305488. Its totient is φ = 6678858240.

The previous prime is 10021903261. The next prime is 10021903271. The reversal of 10021903263 is 36230912001.

It is not a de Polignac number, because 10021903263 - 2¹ = 10021903261 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 (10021903261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174370 + ... + 224607.

Almost surely, 2^10021903263 is an apocalyptic number.

10021903263 is a deficient number, since it is larger than the sum of its proper divisors (4459402225).

10021903263 is a wasteful number, since it uses less digits than its factorization.

10021903263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401774 (or 401771 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 10021903263 in words is "ten billion, twenty-one million, nine hundred three thousand, two hundred sixty-three".