1000312121011 has 16 divisors (see below), whose sum is σ = 1223779334400. Its totient is φ = 798516003168.

The previous prime is 1000312120993. The next prime is 1000312121089. The reversal of 1000312121011 is 1101212130001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1000312121011 - 2⁵ = 1000312120979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000312120982 and 1000312121000.

It is not an unprimeable number, because it can be changed into a prime (1000312124011) 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, 63730660 + ... + 63746353.

It is an arithmetic number, because the mean of its divisors is an integer number (76486208400).

Almost surely, 2^{1000312121011} is an apocalyptic number.

1000312121011 is a deficient number, since it is larger than the sum of its proper divisors (223467213389).

1000312121011 is a wasteful number, since it uses less digits than its factorization.

1000312121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127477098.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1000312121011 its reverse (1101212130001), we get a palindrome (2101524251012).

The spelling of 1000312121011 in words is "one trillion, three hundred twelve million, one hundred twenty-one thousand, eleven".