1320617901 has 8 divisors (see below), whose sum is σ = 1762342560. Its totient is φ = 879652592.

The previous prime is 1320617869. The next prime is 1320617923. The reversal of 1320617901 is 1097160231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320617901 - 2⁵ = 1320617869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320617951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185766 + ... + 192743.

It is an arithmetic number, because the mean of its divisors is an integer number (220292820).

Almost surely, 2^1320617901 is an apocalyptic number.

It is an amenable number.

1320617901 is a deficient number, since it is larger than the sum of its proper divisors (441724659).

1320617901 is a wasteful number, since it uses less digits than its factorization.

1320617901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379675.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 1320617901 is about 36340.3068368994. The cubic root of 1320617901 is about 1097.1324488085.

The spelling of 1320617901 in words is "one billion, three hundred twenty million, six hundred seventeen thousand, nine hundred one".