2152321213631 has 2 divisors, whose sum is σ = 2152321213632. Its totient is φ = 2152321213630.

The previous prime is 2152321213619. The next prime is 2152321213649. The reversal of 2152321213631 is 1363121232512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2152321213631 - 2¹⁰ = 2152321212607 is a prime.

It is a super-2 number, since 2×2152321213631² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2152321213331) 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, 1076160606815 + 1076160606816.

It is an arithmetic number, because the mean of its divisors is an integer number (1076160606816).

Almost surely, 2^{2152321213631} is an apocalyptic number.

2152321213631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152321213631 is an equidigital number, since it uses as much as digits as its factorization.

2152321213631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The spelling of 2152321213631 in words is "two trillion, one hundred fifty-two billion, three hundred twenty-one million, two hundred thirteen thousand, six hundred thirty-one".