1321014101240 has 48 divisors (see below), whose sum is σ = 3136951109880. Its totient is φ = 500594811840.

The previous prime is 1321014101233. The next prime is 1321014101243. The reversal of 1321014101240 is 421014101231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321014101243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45727046 + ... + 45755925.

Almost surely, 2^{1321014101240} is an apocalyptic number.

1321014101240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321014101240 is an abundant number, since it is smaller than the sum of its proper divisors (1815937008640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321014101240 is a wasteful number, since it uses less digits than its factorization.

1321014101240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91483020 (or 91482997 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1321014101240 its reverse (421014101231), we get a palindrome (1742028202471).

Subtracting from 1321014101240 its reverse (421014101231), we obtain a palindrome (900000000009).

The spelling of 1321014101240 in words is "one trillion, three hundred twenty-one billion, fourteen million, one hundred one thousand, two hundred forty".