1020200000019 has 16 divisors (see below), whose sum is σ = 1440527680800. Its totient is φ = 640016455680.

The previous prime is 1020200000011. The next prime is 1020200000021. The reversal of 1020200000019 is 9100000020201.

It is a happy number.

It is not a de Polignac number, because 1020200000019 - 2³ = 1020200000011 is a prime.

It is a super-2 number, since 2×1020200000019² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020199999953 and 1020200000007.

It is not an unprimeable number, because it can be changed into a prime (1020200000011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1400794 + ... + 2000655.

It is an arithmetic number, because the mean of its divisors is an integer number (90032980050).

Almost surely, 2^{1020200000019} is an apocalyptic number.

1020200000019 is a deficient number, since it is larger than the sum of its proper divisors (420327680781).

1020200000019 is a wasteful number, since it uses less digits than its factorization.

1020200000019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407350.

The product of its (nonzero) digits is 36, while the sum is 15.

The spelling of 1020200000019 in words is "one trillion, twenty billion, two hundred million, nineteen", and thus it is an aban number.