1321021232230 has 128 divisors (see below), whose sum is σ = 2812140011520. Its totient is φ = 437469327360.

The previous prime is 1321021232119. The next prime is 1321021232291. The reversal of 1321021232230 is 322321201231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68725561 + ... + 68744779.

It is an arithmetic number, because the mean of its divisors is an integer number (21969843840).

Almost surely, 2^{1321021232230} is an apocalyptic number.

1321021232230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321021232230 is an abundant number, since it is smaller than the sum of its proper divisors (1491118779290).

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

1321021232230 is a wasteful number, since it uses less digits than its factorization.

1321021232230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19574.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1321021232230 its reverse (322321201231), we get a palindrome (1643342433461).

The spelling of 1321021232230 in words is "one trillion, three hundred twenty-one billion, twenty-one million, two hundred thirty-two thousand, two hundred thirty".