1002012120011 has 24 divisors (see below), whose sum is σ = 1178871906960. Its totient is φ = 849141384000.

The previous prime is 1002012119971. The next prime is 1002012120029. The reversal of 1002012120011 is 1100212102001.

It is a de Polignac number, because none of the positive numbers 2^k-1002012120011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002012119974 and 1002012120001.

It is not an unprimeable number, because it can be changed into a prime (1002012120311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1436561 + ... + 2016861.

It is an arithmetic number, because the mean of its divisors is an integer number (49119662790).

Almost surely, 2^{1002012120011} is an apocalyptic number.

1002012120011 is a deficient number, since it is larger than the sum of its proper divisors (176859786949).

1002012120011 is a wasteful number, since it uses less digits than its factorization.

1002012120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580715 (or 580708 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1002012120011 its reverse (1100212102001), we get a palindrome (2102224222012).

The spelling of 1002012120011 in words is "one trillion, two billion, twelve million, one hundred twenty thousand, eleven".