1201191320120 has 64 divisors (see below), whose sum is σ = 2950074073440. Its totient is φ = 436545676800.

The previous prime is 1201191320083. The next prime is 1201191320129. The reversal of 1201191320120 is 210231911021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201191320129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17987 + ... + 1550066.

Almost surely, 2^{1201191320120} is an apocalyptic number.

1201191320120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201191320120 is an abundant number, since it is smaller than the sum of its proper divisors (1748882753320).

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

1201191320120 is a wasteful number, since it uses less digits than its factorization.

1201191320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569816 (or 1569812 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 1201191320120 in words is "one trillion, two hundred one billion, one hundred ninety-one million, three hundred twenty thousand, one hundred twenty".