312420303 has 24 divisors (see below), whose sum is σ = 487272240. Its totient is φ = 191750400.

The previous prime is 312420259. The next prime is 312420313. The reversal of 312420303 is 303024213.

It is not a de Polignac number, because 312420303 - 2¹⁰ = 312419279 is a prime.

It is a super-2 number, since 2×312420303² = 195212891453223618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312420313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43588 + ... + 50246.

It is an arithmetic number, because the mean of its divisors is an integer number (20303010).

Almost surely, 2^312420303 is an apocalyptic number.

312420303 is a deficient number, since it is larger than the sum of its proper divisors (174851937).

312420303 is a wasteful number, since it uses less digits than its factorization.

312420303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7079 (or 7076 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 312420303 is about 17675.4152143592. The cubic root of 312420303 is about 678.5467109931.

Adding to 312420303 its reverse (303024213), we get a palindrome (615444516).

The spelling of 312420303 in words is "three hundred twelve million, four hundred twenty thousand, three hundred three".