2031212112101 has 8 divisors (see below), whose sum is σ = 2103851280600. Its totient is φ = 1958746101760.

The previous prime is 2031212112079. The next prime is 2031212112113. The reversal of 2031212112101 is 1012112121302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1074726156100 + 956485956001 = 1036690^2 + 978001^2 .

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 2031212112101 - 2⁶ = 2031212112037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2031212112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031212112301) 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, 43265660 + ... + 43312581.

It is an arithmetic number, because the mean of its divisors is an integer number (262981410075).

Almost surely, 2^{2031212112101} is an apocalyptic number.

It is an amenable number.

2031212112101 is a deficient number, since it is larger than the sum of its proper divisors (72639168499).

2031212112101 is an equidigital number, since it uses as much as digits as its factorization.

2031212112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86579079.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2031212112101 its reverse (1012112121302), we get a palindrome (3043324233403).

The spelling of 2031212112101 in words is "two trillion, thirty-one billion, two hundred twelve million, one hundred twelve thousand, one hundred one".