140673211631 has 2 divisors, whose sum is σ = 140673211632. Its totient is φ = 140673211630.

The previous prime is 140673211577. The next prime is 140673211633. The reversal of 140673211631 is 136112376041.

140673211631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140673211631 is a prime.

It is a super-2 number, since 2×140673211631² (a number of 23 digits) contains 22 as substring.

Together with 140673211633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 140673211591 and 140673211600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140673211633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70336605815 + 70336605816.

It is an arithmetic number, because the mean of its divisors is an integer number (70336605816).

Almost surely, 2^140673211631 is an apocalyptic number.

140673211631 is a deficient number, since it is larger than the sum of its proper divisors (1).

140673211631 is an equidigital number, since it uses as much as digits as its factorization.

140673211631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

Adding to 140673211631 its reverse (136112376041), we get a palindrome (276785587672).

The spelling of 140673211631 in words is "one hundred forty billion, six hundred seventy-three million, two hundred eleven thousand, six hundred thirty-one".