313227588397 has 2 divisors, whose sum is σ = 313227588398. Its totient is φ = 313227588396.

The previous prime is 313227588329. The next prime is 313227588413. The reversal of 313227588397 is 793885722313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239780626276 + 73446962121 = 489674^2 + 271011^2 .

It is a cyclic number.

It is not a de Polignac number, because 313227588397 - 2¹⁵ = 313227555629 is a prime.

It is a super-2 number, since 2×313227588397² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313227588307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156613794198 + 156613794199.

It is an arithmetic number, because the mean of its divisors is an integer number (156613794199).

Almost surely, 2^313227588397 is an apocalyptic number.

It is an amenable number.

313227588397 is a deficient number, since it is larger than the sum of its proper divisors (1).

313227588397 is an equidigital number, since it uses as much as digits as its factorization.

313227588397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 58.

The spelling of 313227588397 in words is "three hundred thirteen billion, two hundred twenty-seven million, five hundred eighty-eight thousand, three hundred ninety-seven".