2012121031031 has 4 divisors (see below), whose sum is σ = 2013112714200. Its totient is φ = 2011129347864.

The previous prime is 2012121031003. The next prime is 2012121031061. The reversal of 2012121031031 is 1301301212102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2012121031031 - 2¹⁴ = 2012121014647 is a prime.

It is a super-2 number, since 2×2012121031031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012121031061) 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 3 ways as a sum of consecutive naturals, for example, 495838541 + ... + 495842598.

It is an arithmetic number, because the mean of its divisors is an integer number (503278178550).

Almost surely, 2^{2012121031031} is an apocalyptic number.

2012121031031 is a deficient number, since it is larger than the sum of its proper divisors (991683169).

2012121031031 is an equidigital number, since it uses as much as digits as its factorization.

2012121031031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991683168.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 2012121031031 its reverse (1301301212102), we get a palindrome (3313422243133).

The spelling of 2012121031031 in words is "two trillion, twelve billion, one hundred twenty-one million, thirty-one thousand, thirty-one".