21948362303 has 4 divisors (see below), whose sum is σ = 25083842640. Its totient is φ = 18812881968.

The previous prime is 21948362263. The next prime is 21948362311. The reversal of 21948362303 is 30326384912.

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 21948362303 - 2⁶ = 21948362239 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 (21948332303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1567740158 + ... + 1567740171.

It is an arithmetic number, because the mean of its divisors is an integer number (6270960660).

Almost surely, 2^21948362303 is an apocalyptic number.

21948362303 is a deficient number, since it is larger than the sum of its proper divisors (3135480337).

21948362303 is an equidigital number, since it uses as much as digits as its factorization.

21948362303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135480336.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 21948362303 in words is "twenty-one billion, nine hundred forty-eight million, three hundred sixty-two thousand, three hundred three".