312213311071 has 2 divisors, whose sum is σ = 312213311072. Its totient is φ = 312213311070.

The previous prime is 312213311063. The next prime is 312213311149. The reversal of 312213311071 is 170113312213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312213311071 - 2³ = 312213311063 is a prime.

It is a super-2 number, since 2×312213311071² (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 (312213311041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156106655535 + 156106655536.

It is an arithmetic number, because the mean of its divisors is an integer number (156106655536).

Almost surely, 2^312213311071 is an apocalyptic number.

312213311071 is a deficient number, since it is larger than the sum of its proper divisors (1).

312213311071 is an equidigital number, since it uses as much as digits as its factorization.

312213311071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

Adding to 312213311071 its reverse (170113312213), we get a palindrome (482326623284).

The spelling of 312213311071 in words is "three hundred twelve billion, two hundred thirteen million, three hundred eleven thousand, seventy-one".