312020441 has 2 divisors, whose sum is σ = 312020442. Its totient is φ = 312020440.

The previous prime is 312020399. The next prime is 312020447. The reversal of 312020441 is 144020213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248976841 + 63043600 = 15779^2 + 7940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312020441 is a prime.

It is not a weakly prime, because it can be changed into another prime (312020447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156010220 + 156010221.

It is an arithmetic number, because the mean of its divisors is an integer number (156010221).

Almost surely, 2^312020441 is an apocalyptic number.

It is an amenable number.

312020441 is a deficient number, since it is larger than the sum of its proper divisors (1).

312020441 is an equidigital number, since it uses as much as digits as its factorization.

312020441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 312020441 is about 17664.1003450501. The cubic root of 312020441 is about 678.2571001924.

Adding to 312020441 its reverse (144020213), we get a palindrome (456040654).

The spelling of 312020441 in words is "three hundred twelve million, twenty thousand, four hundred forty-one".