511313421 has 8 divisors (see below), whose sum is σ = 684079200. Its totient is φ = 339711632.

The previous prime is 511313417. The next prime is 511313431. The reversal of 511313421 is 124313115.

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 511313421 - 2² = 511313417 is a prime.

It is a super-2 number, since 2×511313421² = 522882828989446482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511313401) 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, 289971 + ... + 291728.

It is an arithmetic number, because the mean of its divisors is an integer number (85509900).

Almost surely, 2^511313421 is an apocalyptic number.

It is an amenable number.

511313421 is a deficient number, since it is larger than the sum of its proper divisors (172765779).

511313421 is a wasteful number, since it uses less digits than its factorization.

511313421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581995.

The product of its digits is 360, while the sum is 21.

The square root of 511313421 is about 22612.2405126073. The cubic root of 511313421 is about 799.6422468105.

Adding to 511313421 its reverse (124313115), we get a palindrome (635626536).

The spelling of 511313421 in words is "five hundred eleven million, three hundred thirteen thousand, four hundred twenty-one".