2012001001531 has 2 divisors, whose sum is σ = 2012001001532. Its totient is φ = 2012001001530.

The previous prime is 2012001001529. The next prime is 2012001001537. The reversal of 2012001001531 is 1351001002102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2012001001531 - 2¹ = 2012001001529 is a prime.

It is a super-2 number, since 2×2012001001531² (a number of 25 digits) contains 22 as substring.

Together with 2012001001529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2012001001537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006000500765 + 1006000500766.

It is an arithmetic number, because the mean of its divisors is an integer number (1006000500766).

Almost surely, 2^{2012001001531} is an apocalyptic number.

2012001001531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012001001531 is an equidigital number, since it uses as much as digits as its factorization.

2012001001531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 16.

Adding to 2012001001531 its reverse (1351001002102), we get a palindrome (3363002003633).

The spelling of 2012001001531 in words is "two trillion, twelve billion, one million, one thousand, five hundred thirty-one".