311048653 has 2 divisors, whose sum is σ = 311048654. Its totient is φ = 311048652.

The previous prime is 311048629. The next prime is 311048663. The reversal of 311048653 is 356840113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304607209 + 6441444 = 17453^2 + 2538^2 .

It is a cyclic number.

It is not a de Polignac number, because 311048653 - 2¹³ = 311040461 is a prime.

It is a super-2 number, since 2×311048653² = 193502529066228818, which contains 22 as substring.

It is equal to p_16818160 and since 311048653 and 16818160 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311048623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155524326 + 155524327.

It is an arithmetic number, because the mean of its divisors is an integer number (155524327).

Almost surely, 2^311048653 is an apocalyptic number.

It is an amenable number.

311048653 is a deficient number, since it is larger than the sum of its proper divisors (1).

311048653 is an equidigital number, since it uses as much as digits as its factorization.

311048653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 311048653 is about 17636.5714638645. The cubic root of 311048653 is about 677.5522237490.

Adding to 311048653 its reverse (356840113), we get a palindrome (667888766).

The spelling of 311048653 in words is "three hundred eleven million, forty-eight thousand, six hundred fifty-three".