31220102030232 has 32 divisors (see below), whose sum is σ = 79865377289280. Its totient is φ = 10164684381600.

The previous prime is 31220102030197. The next prime is 31220102030233. The reversal of 31220102030232 is 23203020102213.

It is a happy number.

31220102030232 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 31220102030199 and 31220102030208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31220102030233) 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, 15126017394 + ... + 15126019457.

It is an arithmetic number, because the mean of its divisors is an integer number (2495793040290).

Almost surely, 2^{31220102030232} is an apocalyptic number.

It is an amenable number.

31220102030232 is an abundant number, since it is smaller than the sum of its proper divisors (48645275259048).

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

31220102030232 is a wasteful number, since it uses less digits than its factorization.

31220102030232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30252036903 (or 30252036899 counting only the distinct ones).

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

Adding to 31220102030232 its reverse (23203020102213), we get a palindrome (54423122132445).

The spelling of 31220102030232 in words is "thirty-one trillion, two hundred twenty billion, one hundred two million, thirty thousand, two hundred thirty-two".