1321011030 has 16 divisors (see below), whose sum is σ = 3170426544. Its totient is φ = 352269600.

The previous prime is 1321011023. The next prime is 1321011079. The reversal of 1321011030 is 301101231.

It is a junction number, because it is equal to n+sod(n) for n = 1321010997 and 1321011015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22016821 + ... + 22016880.

It is an arithmetic number, because the mean of its divisors is an integer number (198151659).

Almost surely, 2^1321011030 is an apocalyptic number.

1321011030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321011030 is an abundant number, since it is smaller than the sum of its proper divisors (1849415514).

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

1321011030 is a wasteful number, since it uses less digits than its factorization.

1321011030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44033711.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1321011030 is about 36345.7154283693. The cubic root of 1321011030 is about 1097.2413048702.

Adding to 1321011030 its reverse (301101231), we get a palindrome (1622112261).

The spelling of 1321011030 in words is "one billion, three hundred twenty-one million, eleven thousand, thirty".