31023212013293 has 2 divisors, whose sum is σ = 31023212013294. Its totient is φ = 31023212013292.

The previous prime is 31023212013271. The next prime is 31023212013307. The reversal of 31023212013293 is 39231021232013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19548441935044 + 11474770078249 = 4421362^2 + 3387443^2 .

It is a cyclic number.

It is not a de Polignac number, because 31023212013293 - 2²⁰ = 31023210964717 is a prime.

It is a super-2 number, since 2×31023212013293² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31023212013193) 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, 15511606006646 + 15511606006647.

It is an arithmetic number, because the mean of its divisors is an integer number (15511606006647).

Almost surely, 2^{31023212013293} is an apocalyptic number.

It is an amenable number.

31023212013293 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023212013293 is an equidigital number, since it uses as much as digits as its factorization.

31023212013293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 31023212013293 in words is "thirty-one trillion, twenty-three billion, two hundred twelve million, thirteen thousand, two hundred ninety-three".