2131332330247 has 2 divisors, whose sum is σ = 2131332330248. Its totient is φ = 2131332330246.

The previous prime is 2131332330229. The next prime is 2131332330271. The reversal of 2131332330247 is 7420332331312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131332330247 is a prime.

It is a super-2 number, since 2×2131332330247² (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 (2131332330217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065666165123 + 1065666165124.

It is an arithmetic number, because the mean of its divisors is an integer number (1065666165124).

Almost surely, 2^{2131332330247} is an apocalyptic number.

2131332330247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131332330247 is an equidigital number, since it uses as much as digits as its factorization.

2131332330247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 34.

Adding to 2131332330247 its reverse (7420332331312), we get a palindrome (9551664661559).

The spelling of 2131332330247 in words is "two trillion, one hundred thirty-one billion, three hundred thirty-two million, three hundred thirty thousand, two hundred forty-seven".