1900143328911 has 4 divisors (see below), whose sum is σ = 2533524438552. Its totient is φ = 1266762219272.

The previous prime is 1900143328903. The next prime is 1900143328927. The reversal of 1900143328911 is 1198233410091.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1900143328911 - 2³ = 1900143328903 is a prime.

It is a super-2 number, since 2×1900143328911² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900143328991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316690554816 + ... + 316690554821.

It is an arithmetic number, because the mean of its divisors is an integer number (633381109638).

Almost surely, 2^{1900143328911} is an apocalyptic number.

1900143328911 is a deficient number, since it is larger than the sum of its proper divisors (633381109641).

1900143328911 is an equidigital number, since it uses as much as digits as its factorization.

1900143328911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633381109640.

The product of its (nonzero) digits is 46656, while the sum is 42.

The spelling of 1900143328911 in words is "one trillion, nine hundred billion, one hundred forty-three million, three hundred twenty-eight thousand, nine hundred eleven".