311130421 has 8 divisors (see below), whose sum is σ = 355772480. Its totient is φ = 266537088.

The previous prime is 311130419. The next prime is 311130431. The reversal of 311130421 is 124031113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311130421 - 2¹ = 311130419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311130395 and 311130404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311130431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2725 + ... + 25093.

It is an arithmetic number, because the mean of its divisors is an integer number (44471560).

Almost surely, 2^311130421 is an apocalyptic number.

It is an amenable number.

311130421 is a deficient number, since it is larger than the sum of its proper divisors (44642059).

311130421 is a wasteful number, since it uses less digits than its factorization.

311130421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24363.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 311130421 is about 17638.8894491688. The cubic root of 311130421 is about 677.6115898490.

Adding to 311130421 its reverse (124031113), we get a palindrome (435161534).

The spelling of 311130421 in words is "three hundred eleven million, one hundred thirty thousand, four hundred twenty-one".