101010202019 has 4 divisors (see below), whose sum is σ = 101990883696. Its totient is φ = 100029520344.

The previous prime is 101010201989. The next prime is 101010202021. The reversal of 101010202019 is 910202010101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101010202019 is a prime.

It is a super-2 number, since 2×101010202019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101010201988 and 101010202006.

It is not an unprimeable number, because it can be changed into a prime (101010202079) 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, 490340684 + ... + 490340889.

It is an arithmetic number, because the mean of its divisors is an integer number (25497720924).

Almost surely, 2^101010202019 is an apocalyptic number.

101010202019 is a deficient number, since it is larger than the sum of its proper divisors (980681677).

101010202019 is an equidigital number, since it uses as much as digits as its factorization.

101010202019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980681676.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 101010202019 in words is "one hundred one billion, ten million, two hundred two thousand, nineteen".