1321231013350 has 12 divisors (see below), whose sum is σ = 2457489684924. Its totient is φ = 528492405320.

The previous prime is 1321231013299. The next prime is 1321231013363. The reversal of 1321231013350 is 533101321231.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13212310084 + ... + 13212310183.

It is an arithmetic number, because the mean of its divisors is an integer number (204790807077).

Almost surely, 2^{1321231013350} is an apocalyptic number.

1321231013350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321231013350 is a deficient number, since it is larger than the sum of its proper divisors (1136258671574).

1321231013350 is a wasteful number, since it uses less digits than its factorization.

1321231013350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26424620279 (or 26424620274 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 1321231013350 its reverse (533101321231), we get a palindrome (1854332334581).

The spelling of 1321231013350 in words is "one trillion, three hundred twenty-one billion, two hundred thirty-one million, thirteen thousand, three hundred fifty".