213131210012293 has 2 divisors, whose sum is σ = 213131210012294. Its totient is φ = 213131210012292.

The previous prime is 213131210012269. The next prime is 213131210012321. The reversal of 213131210012293 is 392210012131312.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162961513547044 + 50169696465249 = 12765638^2 + 7083057^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213131210012293 is a prime.

It is a super-2 number, since 2×213131210012293² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213131210012213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106565605006146 + 106565605006147.

It is an arithmetic number, because the mean of its divisors is an integer number (106565605006147).

Almost surely, 2^{213131210012293} is an apocalyptic number.

It is an amenable number.

213131210012293 is a deficient number, since it is larger than the sum of its proper divisors (1).

213131210012293 is an equidigital number, since it uses as much as digits as its factorization.

213131210012293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 213131210012293 in words is "two hundred thirteen trillion, one hundred thirty-one billion, two hundred ten million, twelve thousand, two hundred ninety-three".