1020010201191 has 24 divisors (see below), whose sum is σ = 1537697921760. Its totient is φ = 650318070336.

The previous prime is 1020010201183. The next prime is 1020010201201. The reversal of 1020010201191 is 1911020100201.

It is a happy number.

It is not a de Polignac number, because 1020010201191 - 2³ = 1020010201183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020010201141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 634885 + ... + 1563041.

It is an arithmetic number, because the mean of its divisors is an integer number (64070746740).

Almost surely, 2^{1020010201191} is an apocalyptic number.

1020010201191 is a deficient number, since it is larger than the sum of its proper divisors (517687720569).

1020010201191 is a wasteful number, since it uses less digits than its factorization.

1020010201191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933495 (or 933492 counting only the distinct ones).

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

Adding to 1020010201191 its reverse (1911020100201), we get a palindrome (2931030301392).

The spelling of 1020010201191 in words is "one trillion, twenty billion, ten million, two hundred one thousand, one hundred ninety-one".