1320231331197 has 160 divisors (see below), whose sum is σ = 2150278694784. Its totient is φ = 804200140800.

The previous prime is 1320231331169. The next prime is 1320231331213. The reversal of 1320231331197 is 7911331320231.

1320231331197 is a `hidden beast` number, since 1 + 3 + 2 + 0 + 231 + 331 + 1 + 97 = 666.

It is not a de Polignac number, because 1320231331197 - 2³⁹ = 770475517309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320231331117) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2888908593 + ... + 2888909049.

Almost surely, 2^{1320231331197} is an apocalyptic number.

1320231331197 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1320231331197 is a deficient number, since it is larger than the sum of its proper divisors (830047363587).

1320231331197 is a wasteful number, since it uses less digits than its factorization.

1320231331197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The spelling of 1320231331197 in words is "one trillion, three hundred twenty billion, two hundred thirty-one million, three hundred thirty-one thousand, one hundred ninety-seven".