1321103122 has 16 divisors (see below), whose sum is σ = 2021464512. Its totient is φ = 647311600.

The previous prime is 1321103111. The next prime is 1321103137. The reversal of 1321103122 is 2213011231.

It is a junction number, because it is equal to n+sod(n) for n = 1321103096 and 1321103105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86997 + ... + 101047.

It is an arithmetic number, because the mean of its divisors is an integer number (126341532).

Almost surely, 2^1321103122 is an apocalyptic number.

1321103122 is a deficient number, since it is larger than the sum of its proper divisors (700361390).

1321103122 is a wasteful number, since it uses less digits than its factorization.

1321103122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14993.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1321103122 is about 36346.9822956459. The cubic root of 1321103122 is about 1097.2668017045.

Adding to 1321103122 its reverse (2213011231), we get a palindrome (3534114353).

The spelling of 1321103122 in words is "one billion, three hundred twenty-one million, one hundred three thousand, one hundred twenty-two".