31848254213 has 2 divisors, whose sum is σ = 31848254214. Its totient is φ = 31848254212.

The previous prime is 31848254183. The next prime is 31848254267. The reversal of 31848254213 is 31245284813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23255335009 + 8592919204 = 152497^2 + 92698^2 .

It is an emirp because it is prime and its reverse (31245284813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31848254213 - 2¹⁶ = 31848188677 is a prime.

It is a super-2 number, since 2×31848254213² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31848244213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15924127106 + 15924127107.

It is an arithmetic number, because the mean of its divisors is an integer number (15924127107).

Almost surely, 2^31848254213 is an apocalyptic number.

It is an amenable number.

31848254213 is a deficient number, since it is larger than the sum of its proper divisors (1).

31848254213 is an equidigital number, since it uses as much as digits as its factorization.

31848254213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 41.

The spelling of 31848254213 in words is "thirty-one billion, eight hundred forty-eight million, two hundred fifty-four thousand, two hundred thirteen".