1212020031011 has 16 divisors (see below), whose sum is σ = 1257799536000. Its totient is φ = 1167024768000.

The previous prime is 1212020030981. The next prime is 1212020031059. The reversal of 1212020031011 is 1101300202121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212020031011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212020031611) 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 15 ways as a sum of consecutive naturals, for example, 8182811 + ... + 8329611.

It is an arithmetic number, because the mean of its divisors is an integer number (78612471000).

Almost surely, 2^{1212020031011} is an apocalyptic number.

1212020031011 is a deficient number, since it is larger than the sum of its proper divisors (45779504989).

1212020031011 is a wasteful number, since it uses less digits than its factorization.

1212020031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149470.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1212020031011 its reverse (1101300202121), we get a palindrome (2313320233132).

The spelling of 1212020031011 in words is "one trillion, two hundred twelve billion, twenty million, thirty-one thousand, eleven".