310140421 has 4 divisors (see below), whose sum is σ = 310175712. Its totient is φ = 310105132.

The previous prime is 310140419. The next prime is 310140433. The reversal of 310140421 is 124041013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 310140421 - 2¹ = 310140419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 310140395 and 310140404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310140221) 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, 7176 + ... + 25918.

It is an arithmetic number, because the mean of its divisors is an integer number (77543928).

Almost surely, 2^310140421 is an apocalyptic number.

It is an amenable number.

310140421 is a deficient number, since it is larger than the sum of its proper divisors (35291).

310140421 is a wasteful number, since it uses less digits than its factorization.

310140421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35290.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 310140421 is about 17610.8040986208. The cubic root of 310140421 is about 676.8921185172.

Adding to 310140421 its reverse (124041013), we get a palindrome (434181434).

The spelling of 310140421 in words is "three hundred ten million, one hundred forty thousand, four hundred twenty-one".