1031211032011 has 8 divisors (see below), whose sum is σ = 1046633753664. Its totient is φ = 1015789237320.

The previous prime is 1031211031951. The next prime is 1031211032123. The reversal of 1031211032011 is 1102301121301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1031211032011 - 2⁷ = 1031211031883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031211012011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2199036 + ... + 2626438.

It is an arithmetic number, because the mean of its divisors is an integer number (130829219208).

Almost surely, 2^{1031211032011} is an apocalyptic number.

1031211032011 is a deficient number, since it is larger than the sum of its proper divisors (15422721653).

1031211032011 is an equidigital number, since it uses as much as digits as its factorization.

1031211032011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463481.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1031211032011 its reverse (1102301121301), we get a palindrome (2133512153312).

The spelling of 1031211032011 in words is "one trillion, thirty-one billion, two hundred eleven million, thirty-two thousand, eleven".