1943112203811 has 12 divisors (see below), whose sum is σ = 2828817768192. Its totient is φ = 1285208071056.

The previous prime is 1943112203789. The next prime is 1943112203827. The reversal of 1943112203811 is 1183022113491.

It is a happy number.

1943112203811 is a `hidden beast` number, since 1 + 9 + 43 + 11 + 220 + 381 + 1 = 666.

It is not a de Polignac number, because 1943112203811 - 2²³ = 1943103815203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1943112203881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 850004196 + ... + 850006481.

It is an arithmetic number, because the mean of its divisors is an integer number (235734814016).

Almost surely, 2^{1943112203811} is an apocalyptic number.

1943112203811 is a deficient number, since it is larger than the sum of its proper divisors (885705564381).

1943112203811 is a wasteful number, since it uses less digits than its factorization.

1943112203811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700010810 (or 1700010807 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 1943112203811 in words is "one trillion, nine hundred forty-three billion, one hundred twelve million, two hundred three thousand, eight hundred eleven".