2001211002031 has 2 divisors, whose sum is σ = 2001211002032. Its totient is φ = 2001211002030.

The previous prime is 2001211001963. The next prime is 2001211002041. The reversal of 2001211002031 is 1302001121002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2001211002031 - 2¹³ = 2001210993839 is a prime.

It is a super-2 number, since 2×2001211002031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001211002041) 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 as a sum of consecutive naturals, namely, 1000605501015 + 1000605501016.

It is an arithmetic number, because the mean of its divisors is an integer number (1000605501016).

Almost surely, 2^{2001211002031} is an apocalyptic number.

2001211002031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001211002031 is an equidigital number, since it uses as much as digits as its factorization.

2001211002031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2001211002031 its reverse (1302001121002), we get a palindrome (3303212123033).

The spelling of 2001211002031 in words is "two trillion, one billion, two hundred eleven million, two thousand, thirty-one".