31422612053197 has 2 divisors, whose sum is σ = 31422612053198. Its totient is φ = 31422612053196.

The previous prime is 31422612053141. The next prime is 31422612053243. The reversal of 31422612053197 is 79135021622413.

It is an a-pointer prime, because the next prime (31422612053243) can be obtained adding 31422612053197 to its sum of digits (46).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17455567016196 + 13967045037001 = 4177986^2 + 3737251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31422612053197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31422612053137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15711306026598 + 15711306026599.

It is an arithmetic number, because the mean of its divisors is an integer number (15711306026599).

Almost surely, 2^{31422612053197} is an apocalyptic number.

It is an amenable number.

31422612053197 is a deficient number, since it is larger than the sum of its proper divisors (1).

31422612053197 is an equidigital number, since it uses as much as digits as its factorization.

31422612053197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 31422612053197 in words is "thirty-one trillion, four hundred twenty-two billion, six hundred twelve million, fifty-three thousand, one hundred ninety-seven".