1231120330102 has 128 divisors (see below), whose sum is σ = 2120392237824. Its totient is φ = 531839582208.

The previous prime is 1231120330067. The next prime is 1231120330151. The reversal of 1231120330102 is 2010330211321.

It is a self number, because there is not a number n which added to its sum of digits gives 1231120330102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3101058568 + ... + 3101058964.

It is an arithmetic number, because the mean of its divisors is an integer number (16565564358).

Almost surely, 2^{1231120330102} is an apocalyptic number.

1231120330102 is a deficient number, since it is larger than the sum of its proper divisors (889271907722).

1231120330102 is a wasteful number, since it uses less digits than its factorization.

1231120330102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1231120330102 its reverse (2010330211321), we get a palindrome (3241450541423).

The spelling of 1231120330102 in words is "one trillion, two hundred thirty-one billion, one hundred twenty million, three hundred thirty thousand, one hundred two".