1020112000191 has 40 divisors (see below), whose sum is σ = 1543437434880. Its totient is φ = 671345642448.

The previous prime is 1020112000153. The next prime is 1020112000273. The reversal of 1020112000191 is 1910002110201.

It is a happy number.

It is not a de Polignac number, because 1020112000191 - 2¹⁰ = 1020111999167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020112000121) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 48513106 + ... + 48534128.

It is an arithmetic number, because the mean of its divisors is an integer number (38585935872).

Almost surely, 2^{1020112000191} is an apocalyptic number.

1020112000191 is a deficient number, since it is larger than the sum of its proper divisors (523325434689).

1020112000191 is an equidigital number, since it uses as much as digits as its factorization.

1020112000191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28697 (or 28688 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1020112000191 its reverse (1910002110201), we get a palindrome (2930114110392).

The spelling of 1020112000191 in words is "one trillion, twenty billion, one hundred twelve million, one hundred ninety-one", and thus it is an aban number.