103021020197 has 4 divisors (see below), whose sum is σ = 105416857920. Its totient is φ = 100625182476.

The previous prime is 103021020173. The next prime is 103021020229. The reversal of 103021020197 is 791020120301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 791020120301 = 412561 ⋅1917341.

It is a cyclic number.

It is not a de Polignac number, because 103021020197 - 2¹² = 103021016101 is a prime.

It is a super-2 number, since 2×103021020197² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103021020097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1197918797 + ... + 1197918882.

It is an arithmetic number, because the mean of its divisors is an integer number (26354214480).

Almost surely, 2^103021020197 is an apocalyptic number.

It is an amenable number.

103021020197 is a deficient number, since it is larger than the sum of its proper divisors (2395837723).

103021020197 is an equidigital number, since it uses as much as digits as its factorization.

103021020197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395837722.

The product of its (nonzero) digits is 756, while the sum is 26.

Adding to 103021020197 its reverse (791020120301), we get a palindrome (894041140498).

The spelling of 103021020197 in words is "one hundred three billion, twenty-one million, twenty thousand, one hundred ninety-seven".