1011201002019 has 12 divisors (see below), whose sum is σ = 1572979336656. Its totient is φ = 622277539632.

The previous prime is 1011201002003. The next prime is 1011201002051. The reversal of 1011201002019 is 9102001021101.

It is a happy number.

It is not a de Polignac number, because 1011201002019 - 2⁴ = 1011201002003 is a prime.

It is a super-2 number, since 2×1011201002019² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011201001992 and 1011201002010.

It is not an unprimeable number, because it can be changed into a prime (1011201002099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4321371687 + ... + 4321371920.

It is an arithmetic number, because the mean of its divisors is an integer number (131081611388).

Almost surely, 2^{1011201002019} is an apocalyptic number.

1011201002019 is a deficient number, since it is larger than the sum of its proper divisors (561778334637).

1011201002019 is a wasteful number, since it uses less digits than its factorization.

1011201002019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8642743626 (or 8642743623 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 1011201002019 in words is "one trillion, eleven billion, two hundred one million, two thousand, nineteen".