1321101403948 has 24 divisors (see below), whose sum is σ = 2412735913728. Its totient is φ = 631755187536.

The previous prime is 1321101403883. The next prime is 1321101403949. The reversal of 1321101403948 is 8493041011231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1321101403949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89136 + ... + 1627927.

It is an arithmetic number, because the mean of its divisors is an integer number (100530663072).

Almost surely, 2^{1321101403948} is an apocalyptic number.

It is an amenable number.

1321101403948 is a deficient number, since it is larger than the sum of its proper divisors (1091634509780).

1321101403948 is a wasteful number, since it uses less digits than its factorization.

1321101403948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725453 (or 1725451 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 1321101403948 in words is "one trillion, three hundred twenty-one billion, one hundred one million, four hundred three thousand, nine hundred forty-eight".