1321113310 has 32 divisors (see below), whose sum is σ = 2600271072. Its totient is φ = 479278080.

The previous prime is 1321113293. The next prime is 1321113319. The reversal of 1321113310 is 133111231.

It is a super-2 number, since 2×1321113310² = 3490680755718312200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321113319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33762 + ... + 61498.

It is an arithmetic number, because the mean of its divisors is an integer number (81258471).

Almost surely, 2^1321113310 is an apocalyptic number.

1321113310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321113310 is a deficient number, since it is larger than the sum of its proper divisors (1279157762).

1321113310 is a wasteful number, since it uses less digits than its factorization.

1321113310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28188.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1321113310 is about 36347.1224445622. The cubic root of 1321113310 is about 1097.2696223083.

Adding to 1321113310 its reverse (133111231), we get a palindrome (1454224541).

The spelling of 1321113310 in words is "one billion, three hundred twenty-one million, one hundred thirteen thousand, three hundred ten".