31345225351277 has 2 divisors, whose sum is σ = 31345225351278. Its totient is φ = 31345225351276.

The previous prime is 31345225351211. The next prime is 31345225351327. The reversal of 31345225351277 is 77215352254313.

It is a happy number.

It is an a-pointer prime, because the next prime (31345225351327) can be obtained adding 31345225351277 to its sum of digits (50).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29202146017801 + 2143079333476 = 5403901^2 + 1463926^2 .

It is a cyclic number.

It is not a de Polignac number, because 31345225351277 - 2¹⁶ = 31345225285741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31345225351777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15672612675638 + 15672612675639.

It is an arithmetic number, because the mean of its divisors is an integer number (15672612675639).

Almost surely, 2^{31345225351277} is an apocalyptic number.

It is an amenable number.

31345225351277 is a deficient number, since it is larger than the sum of its proper divisors (1).

31345225351277 is an equidigital number, since it uses as much as digits as its factorization.

31345225351277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292000, while the sum is 50.

The spelling of 31345225351277 in words is "thirty-one trillion, three hundred forty-five billion, two hundred twenty-five million, three hundred fifty-one thousand, two hundred seventy-seven".