1206998301631 has 2 divisors, whose sum is σ = 1206998301632. Its totient is φ = 1206998301630.

The previous prime is 1206998301589. The next prime is 1206998301637. The reversal of 1206998301631 is 1361038996021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1206998301631 - 2¹³ = 1206998293439 is a prime.

It is a super-2 number, since 2×1206998301631² (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 (1206998301637) 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, 603499150815 + 603499150816.

It is an arithmetic number, because the mean of its divisors is an integer number (603499150816).

Almost surely, 2^{1206998301631} is an apocalyptic number.

1206998301631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206998301631 is an equidigital number, since it uses as much as digits as its factorization.

1206998301631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 49.

The spelling of 1206998301631 in words is "one trillion, two hundred six billion, nine hundred ninety-eight million, three hundred one thousand, six hundred thirty-one".