1321018148 has 24 divisors (see below), whose sum is σ = 2351299104. Its totient is φ = 649313600.

The previous prime is 1321018129. The next prime is 1321018151. The reversal of 1321018148 is 8418101231.

It is a self number, because there is not a number n which added to its sum of digits gives 1321018148.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44288 + ... + 67848.

It is an arithmetic number, because the mean of its divisors is an integer number (97970796).

Almost surely, 2^1321018148 is an apocalyptic number.

It is an amenable number.

1321018148 is a deficient number, since it is larger than the sum of its proper divisors (1030280956).

1321018148 is a wasteful number, since it uses less digits than its factorization.

1321018148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23803 (or 23801 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 1321018148 is about 36345.8133489952. The cubic root of 1321018148 is about 1097.2432756207.

Adding to 1321018148 its reverse (8418101231), we get a palindrome (9739119379).

The spelling of 1321018148 in words is "one billion, three hundred twenty-one million, eighteen thousand, one hundred forty-eight".