1321020223230 has 64 divisors (see below), whose sum is σ = 3337487504640. Its totient is φ = 333714099456.

The previous prime is 1321020223157. The next prime is 1321020223253. The reversal of 1321020223230 is 323220201231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1321020223197 and 1321020223206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13679194 + ... + 13775426.

It is an arithmetic number, because the mean of its divisors is an integer number (52148242260).

Almost surely, 2^{1321020223230} is an apocalyptic number.

1321020223230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321020223230 is an abundant number, since it is smaller than the sum of its proper divisors (2016467281410).

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

1321020223230 is a wasteful number, since it uses less digits than its factorization.

1321020223230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120345.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1321020223230 its reverse (323220201231), we get a palindrome (1644240424461).

The spelling of 1321020223230 in words is "one trillion, three hundred twenty-one billion, twenty million, two hundred twenty-three thousand, two hundred thirty".