1321024101140 has 12 divisors (see below), whose sum is σ = 2774150612436. Its totient is φ = 528409640448.

The previous prime is 1321024101127. The next prime is 1321024101151. The reversal of 1321024101140 is 411014201231.

It can be written as a sum of positive squares in 2 ways, for example, as 287926681744 + 1033097419396 = 536588^2 + 1016414^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 66051205057 = 1321024101140 / (1 + 3 + 2 + 1 + 0 + 2 + 4 + 1 + 0 + 1 + 1 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33025602509 + ... + 33025602548.

It is an arithmetic number, because the mean of its divisors is an integer number (231179217703).

Almost surely, 2^{1321024101140} is an apocalyptic number.

1321024101140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321024101140 is an abundant number, since it is smaller than the sum of its proper divisors (1453126511296).

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

1321024101140 is a wasteful number, since it uses less digits than its factorization.

1321024101140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66051205066 (or 66051205064 counting only the distinct ones).

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

Adding to 1321024101140 its reverse (411014201231), we get a palindrome (1732038302371).

The spelling of 1321024101140 in words is "one trillion, three hundred twenty-one billion, twenty-four million, one hundred one thousand, one hundred forty".