10111020197 has 8 divisors (see below), whose sum is σ = 10170632160. Its totient is φ = 10051518960.

The previous prime is 10111020193. The next prime is 10111020287. The reversal of 10111020197 is 79102011101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10111020197 - 2² = 10111020193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111020193) 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, 159179 + ... + 213447.

It is an arithmetic number, because the mean of its divisors is an integer number (1271329020).

Almost surely, 2^10111020197 is an apocalyptic number.

It is an amenable number.

10111020197 is a deficient number, since it is larger than the sum of its proper divisors (59611963).

10111020197 is an equidigital number, since it uses as much as digits as its factorization.

10111020197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55363.

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

Adding to 10111020197 its reverse (79102011101), we get a palindrome (89213031298).

The spelling of 10111020197 in words is "ten billion, one hundred eleven million, twenty thousand, one hundred ninety-seven".