1320215001 has 32 divisors (see below), whose sum is σ = 2077920000. Its totient is φ = 729990144.

The previous prime is 1320214991. The next prime is 1320215023. The reversal of 1320215001 is 1005120231.

1320215001 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1320215001 - 2⁷ = 1320214873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320215051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73125 + ... + 89373.

It is an arithmetic number, because the mean of its divisors is an integer number (64935000).

Almost surely, 2^1320215001 is an apocalyptic number.

It is an amenable number.

1320215001 is a deficient number, since it is larger than the sum of its proper divisors (757704999).

1320215001 is a wasteful number, since it uses less digits than its factorization.

1320215001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16385.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1320215001 is about 36334.7629825763. The cubic root of 1320215001 is about 1097.0208647731.

Adding to 1320215001 its reverse (1005120231), we get a palindrome (2325335232).

It can be divided in two parts, 13202 and 15001, that added together give a triangular number (28203 = T₂₃₇).

The spelling of 1320215001 in words is "one billion, three hundred twenty million, two hundred fifteen thousand, one".