31232121330230 has 16 divisors (see below), whose sum is σ = 56221057247040. Its totient is φ = 12492128787072.

The previous prime is 31232121330187. The next prime is 31232121330233. The reversal of 31232121330230 is 3203312123213.

It is a self number, because there is not a number n which added to its sum of digits gives 31232121330230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232121330233) 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, 89785859 + ... + 90133038.

It is an arithmetic number, because the mean of its divisors is an integer number (3513816077940).

Almost surely, 2^{31232121330230} is an apocalyptic number.

31232121330230 is a deficient number, since it is larger than the sum of its proper divisors (24988935916810).

31232121330230 is a wasteful number, since it uses less digits than its factorization.

31232121330230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179936263.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 31232121330230 its reverse (3203312123213), we get a palindrome (34435433453443).

The spelling of 31232121330230 in words is "thirty-one trillion, two hundred thirty-two billion, one hundred twenty-one million, three hundred thirty thousand, two hundred thirty".