1201231332120 has 64 divisors (see below), whose sum is σ = 3662770969440. Its totient is φ = 315077068800.

The previous prime is 1201231332089. The next prime is 1201231332137. The reversal of 1201231332120 is 212331321021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82044001 + ... + 82058640.

Almost surely, 2^{1201231332120} is an apocalyptic number.

1201231332120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201231332120 is an abundant number, since it is smaller than the sum of its proper divisors (2461539637320).

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

1201231332120 is a wasteful number, since it uses less digits than its factorization.

1201231332120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164102716 (or 164102712 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1201231332120 its reverse (212331321021), we get a palindrome (1413562653141).

It can be divided in two parts, 1201231 and 332120, that added together give a palindrome (1533351).

The spelling of 1201231332120 in words is "one trillion, two hundred one billion, two hundred thirty-one million, three hundred thirty-two thousand, one hundred twenty".