1231032220230 has 64 divisors (see below), whose sum is σ = 3083132367360. Its totient is φ = 313982102016.

The previous prime is 1231032220213. The next prime is 1231032220237. The reversal of 1231032220230 is 320222301321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1231032220197 and 1231032220206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231032220237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12632974 + ... + 12730046.

It is an arithmetic number, because the mean of its divisors is an integer number (48173943240).

Almost surely, 2^{1231032220230} is an apocalyptic number.

1231032220230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231032220230 is an abundant number, since it is smaller than the sum of its proper divisors (1852100147130).

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

1231032220230 is a wasteful number, since it uses less digits than its factorization.

1231032220230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115485.

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

Adding to 1231032220230 its reverse (320222301321), we get a palindrome (1551254521551).

The spelling of 1231032220230 in words is "one trillion, two hundred thirty-one billion, thirty-two million, two hundred twenty thousand, two hundred thirty".