310242131 has 4 divisors (see below), whose sum is σ = 313980072. Its totient is φ = 306504192.

The previous prime is 310242109. The next prime is 310242137. The reversal of 310242131 is 131242013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131242013 = 7 ⋅18748859.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-310242131 is a prime.

It is a super-2 number, since 2×310242131² = 192500359694842322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (310242137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1868846 + ... + 1869011.

It is an arithmetic number, because the mean of its divisors is an integer number (78495018).

Almost surely, 2^310242131 is an apocalyptic number.

310242131 is a deficient number, since it is larger than the sum of its proper divisors (3737941).

310242131 is an equidigital number, since it uses as much as digits as its factorization.

310242131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737940.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 310242131 is about 17613.6915778607. The cubic root of 310242131 is about 676.9661056190.

Adding to 310242131 its reverse (131242013), we get a palindrome (441484144).

The spelling of 310242131 in words is "three hundred ten million, two hundred forty-two thousand, one hundred thirty-one".