6321203961 has 4 divisors (see below), whose sum is σ = 8428271952. Its totient is φ = 4214135972.

The previous prime is 6321203957. The next prime is 6321203971. The reversal of 6321203961 is 1693021236.

6321203961 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6321203961 - 2² = 6321203957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6321203951) 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, 1053533991 + ... + 1053533996.

It is an arithmetic number, because the mean of its divisors is an integer number (2107067988).

Almost surely, 2^6321203961 is an apocalyptic number.

It is an amenable number.

6321203961 is a deficient number, since it is larger than the sum of its proper divisors (2107067991).

6321203961 is a wasteful number, since it uses less digits than its factorization.

6321203961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107067990.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 6321203961 is about 79505.9995283375. Note that the first 3 decimals coincide. The cubic root of 6321203961 is about 1848.9844887789.

The spelling of 6321203961 in words is "six billion, three hundred twenty-one million, two hundred three thousand, nine hundred sixty-one".