100320461 has 4 divisors (see below), whose sum is σ = 100347072. Its totient is φ = 100293852.

The previous prime is 100320427. The next prime is 100320463. The reversal of 100320461 is 164023001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 164023001 = 41 ⋅4000561.

It is a cyclic number.

It is not a de Polignac number, because 100320461 - 2²⁶ = 33211597 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 (100320463) 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, 6485 + ... + 15578.

It is an arithmetic number, because the mean of its divisors is an integer number (25086768).

Almost surely, 2^100320461 is an apocalyptic number.

It is an amenable number.

100320461 is a deficient number, since it is larger than the sum of its proper divisors (26611).

100320461 is an equidigital number, since it uses as much as digits as its factorization.

100320461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26610.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 100320461 is about 10016.0102336210. The cubic root of 100320461 is about 464.6541707362.

Adding to 100320461 its reverse (164023001), we get a palindrome (264343462).

The spelling of 100320461 in words is "one hundred million, three hundred twenty thousand, four hundred sixty-one".