1210011001011 has 24 divisors (see below), whose sum is σ = 1824098864640. Its totient is φ = 771468301296.

The previous prime is 1210011000973. The next prime is 1210011001097. The reversal of 1210011001011 is 1101001100121.

It is not a de Polignac number, because 1210011001011 - 2¹³ = 1210010992819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1210011000984 and 1210011001002.

It is not an unprimeable number, because it can be changed into a prime (1210011071011) 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 23 ways as a sum of consecutive naturals, for example, 708120 + ... + 1709226.

It is an arithmetic number, because the mean of its divisors is an integer number (76004119360).

Almost surely, 2^{1210011001011} is an apocalyptic number.

1210011001011 is a deficient number, since it is larger than the sum of its proper divisors (614087863629).

1210011001011 is a wasteful number, since it uses less digits than its factorization.

1210011001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006975 (or 1006972 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1210011001011 its reverse (1101001100121), we get a palindrome (2311012101132).

The spelling of 1210011001011 in words is "one trillion, two hundred ten billion, eleven million, one thousand, eleven".