1201321020230 has 32 divisors (see below), whose sum is σ = 2174894124480. Its totient is φ = 477754542720.

The previous prime is 1201321020217. The next prime is 1201321020233. The reversal of 1201321020230 is 320201231021.

It is a junction number, because it is equal to n+sod(n) for n = 1201321020199 and 1201321020208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201321020233) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 806591 + ... + 1747349.

It is an arithmetic number, because the mean of its divisors is an integer number (67965441390).

Almost surely, 2^{1201321020230} is an apocalyptic number.

1201321020230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201321020230 is a deficient number, since it is larger than the sum of its proper divisors (973573104250).

1201321020230 is a wasteful number, since it uses less digits than its factorization.

1201321020230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941504.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1201321020230 its reverse (320201231021), we get a palindrome (1521522251251).

The spelling of 1201321020230 in words is "one trillion, two hundred one billion, three hundred twenty-one million, twenty thousand, two hundred thirty".