231120223220332 has 12 divisors (see below), whose sum is σ = 404887487147640. Its totient is φ = 115438084035296.

The previous prime is 231120223220309. The next prime is 231120223220357. The reversal of 231120223220332 is 233022322021132.

It is a self number, because there is not a number n which added to its sum of digits gives 231120223220332.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30506889457 + ... + 30506897032.

It is an arithmetic number, because the mean of its divisors is an integer number (33740623928970).

Almost surely, 2^{231120223220332} is an apocalyptic number.

It is an amenable number.

231120223220332 is a deficient number, since it is larger than the sum of its proper divisors (173767263927308).

231120223220332 is a wasteful number, since it uses less digits than its factorization.

231120223220332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61013787440 (or 61013787438 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 231120223220332 its reverse (233022322021132), we get a palindrome (464142545241464).

The spelling of 231120223220332 in words is "two hundred thirty-one trillion, one hundred twenty billion, two hundred twenty-three million, two hundred twenty thousand, three hundred thirty-two".