1011002010197 has 8 divisors (see below), whose sum is σ = 1055042761344. Its totient is φ = 966968270928.

The previous prime is 1011002010181. The next prime is 1011002010233. The reversal of 1011002010197 is 7910102001101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1011002010197 - 2⁴ = 1011002010181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011002010157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1457258 + ... + 2036075.

It is an arithmetic number, because the mean of its divisors is an integer number (131880345168).

Almost surely, 2^{1011002010197} is an apocalyptic number.

It is an amenable number.

1011002010197 is a deficient number, since it is larger than the sum of its proper divisors (44040751147).

1011002010197 is a wasteful number, since it uses less digits than its factorization.

1011002010197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3505939.

The product of its (nonzero) digits is 126, while the sum is 23.

Adding to 1011002010197 its reverse (7910102001101), we get a palindrome (8921104011298).

The spelling of 1011002010197 in words is "one trillion, eleven billion, two million, ten thousand, one hundred ninety-seven".