1231220303230 has 16 divisors (see below), whose sum is σ = 2225708123184. Its totient is φ = 490374437440.

The previous prime is 1231220303219. The next prime is 1231220303233. The reversal of 1231220303230 is 323030221321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231220303233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264208036 + ... + 264212695.

It is an arithmetic number, because the mean of its divisors is an integer number (139106757699).

Almost surely, 2^{1231220303230} is an apocalyptic number.

1231220303230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231220303230 is a deficient number, since it is larger than the sum of its proper divisors (994487819954).

1231220303230 is a wasteful number, since it uses less digits than its factorization.

1231220303230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528420971.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1231220303230 its reverse (323030221321), we get a palindrome (1554250524551).

The spelling of 1231220303230 in words is "one trillion, two hundred thirty-one billion, two hundred twenty million, three hundred three thousand, two hundred thirty".