1031202420399 has 20 divisors (see below), whose sum is σ = 1545359749296. Its totient is φ = 685271879136.

The previous prime is 1031202420323. The next prime is 1031202420461. The reversal of 1031202420399 is 9930242021301.

1031202420399 is a `hidden beast` number, since 1 + 0 + 3 + 1 + 20 + 242 + 0 + 399 = 666.

1031202420399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1031202420399 - 2¹² = 1031202416303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031202420299) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20311539 + ... + 20362244.

Almost surely, 2^{1031202420399} is an apocalyptic number.

1031202420399 is a deficient number, since it is larger than the sum of its proper divisors (514157328897).

1031202420399 is an equidigital number, since it uses as much as digits as its factorization.

1031202420399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40674108 (or 40674099 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 1031202420399 in words is "one trillion, thirty-one billion, two hundred two million, four hundred twenty thousand, three hundred ninety-nine".