312101473 has 2 divisors, whose sum is σ = 312101474. Its totient is φ = 312101472.

The previous prime is 312101441. The next prime is 312101483. The reversal of 312101473 is 374101213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311593104 + 508369 = 17652^2 + 713^2 .

It is an emirp because it is prime and its reverse (374101213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312101473 - 2⁵ = 312101441 is a prime.

It is not a weakly prime, because it can be changed into another prime (312101423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156050736 + 156050737.

It is an arithmetic number, because the mean of its divisors is an integer number (156050737).

Almost surely, 2^312101473 is an apocalyptic number.

It is an amenable number.

312101473 is a deficient number, since it is larger than the sum of its proper divisors (1).

312101473 is an equidigital number, since it uses as much as digits as its factorization.

312101473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 312101473 is about 17666.3938878312. The cubic root of 312101473 is about 678.3158097779.

Adding to 312101473 its reverse (374101213), we get a palindrome (686202686).

The spelling of 312101473 in words is "three hundred twelve million, one hundred one thousand, four hundred seventy-three".