1321230113 has 32 divisors (see below), whose sum is σ = 1640755200. Its totient is φ = 1038749184.

The previous prime is 1321230109. The next prime is 1321230143. The reversal of 1321230113 is 3110321231.

It is a cyclic number.

It is not a de Polignac number, because 1321230113 - 2² = 1321230109 is a prime.

It is a super-2 number, since 2×1321230113² = 3491298022995985538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1321230091 and 1321230100.

It is not an unprimeable number, because it can be changed into a prime (1321230143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 605258 + ... + 607436.

It is an arithmetic number, because the mean of its divisors is an integer number (51273600).

Almost surely, 2^1321230113 is an apocalyptic number.

It is an amenable number.

1321230113 is a deficient number, since it is larger than the sum of its proper divisors (319525087).

1321230113 is a wasteful number, since it uses less digits than its factorization.

1321230113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1321230113 is about 36348.7291799865. The cubic root of 1321230113 is about 1097.3019588247.

Adding to 1321230113 its reverse (3110321231), we get a palindrome (4431551344).

The spelling of 1321230113 in words is "one billion, three hundred twenty-one million, two hundred thirty thousand, one hundred thirteen".