1326620012 has 6 divisors (see below), whose sum is σ = 2321585028. Its totient is φ = 663310004.

The previous prime is 1326620003. The next prime is 1326620017. The reversal of 1326620012 is 2100266231.

It is a self number, because there is not a number n which added to its sum of digits gives 1326620012.

It is not an unprimeable number, because it can be changed into a prime (1326620017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165827498 + ... + 165827505.

It is an arithmetic number, because the mean of its divisors is an integer number (386930838).

Almost surely, 2^1326620012 is an apocalyptic number.

It is an amenable number.

1326620012 is a deficient number, since it is larger than the sum of its proper divisors (994965016).

1326620012 is a wasteful number, since it uses less digits than its factorization.

1326620012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331655007 (or 331655005 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1326620012 is about 36422.7952249687. The cubic root of 1326620012 is about 1098.7920657619.

Adding to 1326620012 its reverse (2100266231), we get a palindrome (3426886243).

The spelling of 1326620012 in words is "one billion, three hundred twenty-six million, six hundred twenty thousand, twelve".