2321563403 has 4 divisors (see below), whose sum is σ = 2323189440. Its totient is φ = 2319937368.

The previous prime is 2321563381. The next prime is 2321563411. The reversal of 2321563403 is 3043651232.

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 2321563403 - 2⁶ = 2321563339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2321565403) 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, 810875 + ... + 813732.

It is an arithmetic number, because the mean of its divisors is an integer number (580797360).

Almost surely, 2^2321563403 is an apocalyptic number.

2321563403 is a deficient number, since it is larger than the sum of its proper divisors (1626037).

2321563403 is a wasteful number, since it uses less digits than its factorization.

2321563403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626036.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 2321563403 is about 48182.6047759977. The cubic root of 2321563403 is about 1324.1184886413.

The spelling of 2321563403 in words is "two billion, three hundred twenty-one million, five hundred sixty-three thousand, four hundred three".