310480031 has 2 divisors, whose sum is σ = 310480032. Its totient is φ = 310480030.

The previous prime is 310480021. The next prime is 310480103. The reversal of 310480031 is 130084013.

It is a happy number.

Together with next prime (310480103) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-310480031 is a prime.

It is a super-2 number, since 2×310480031² = 192795699299521922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 310479985 and 310480012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (310480021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155240015 + 155240016.

It is an arithmetic number, because the mean of its divisors is an integer number (155240016).

Almost surely, 2^310480031 is an apocalyptic number.

310480031 is a deficient number, since it is larger than the sum of its proper divisors (1).

310480031 is an equidigital number, since it uses as much as digits as its factorization.

310480031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 310480031 is about 17620.4435528735. The cubic root of 310480031 is about 677.1390985520.

The spelling of 310480031 in words is "three hundred ten million, four hundred eighty thousand, thirty-one".