1020188401199 has 16 divisors (see below), whose sum is σ = 1124580188160. Its totient is φ = 917775401760.

The previous prime is 1020188401187. The next prime is 1020188401237. The reversal of 1020188401199 is 9911048810201.

It is a cyclic number.

It is not a de Polignac number, because 1020188401199 - 2⁸ = 1020188400943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020188409199) 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, 395219 + ... + 1482084.

It is an arithmetic number, because the mean of its divisors is an integer number (70286261760).

Almost surely, 2^{1020188401199} is an apocalyptic number.

1020188401199 is a deficient number, since it is larger than the sum of its proper divisors (104391786961).

1020188401199 is a wasteful number, since it uses less digits than its factorization.

1020188401199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877830.

The product of its (nonzero) digits is 41472, while the sum is 44.

The spelling of 1020188401199 in words is "one trillion, twenty billion, one hundred eighty-eight million, four hundred one thousand, one hundred ninety-nine".