109100020193 has 2 divisors, whose sum is σ = 109100020194. Its totient is φ = 109100020192.

The previous prime is 109100020187. The next prime is 109100020219. The reversal of 109100020193 is 391020001901.

It is an a-pointer prime, because the next prime (109100020219) can be obtained adding 109100020193 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85999668049 + 23100352144 = 293257^2 + 151988^2 .

It is a cyclic number.

It is not a de Polignac number, because 109100020193 - 2²⁰ = 109098971617 is a prime.

It is a super-2 number, since 2×109100020193² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (109100020993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54550010096 + 54550010097.

It is an arithmetic number, because the mean of its divisors is an integer number (54550010097).

Almost surely, 2^109100020193 is an apocalyptic number.

It is an amenable number.

109100020193 is a deficient number, since it is larger than the sum of its proper divisors (1).

109100020193 is an equidigital number, since it uses as much as digits as its factorization.

109100020193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 26.

The spelling of 109100020193 in words is "one hundred nine billion, one hundred million, twenty thousand, one hundred ninety-three".