513121430 has 16 divisors (see below), whose sum is σ = 923940864. Its totient is φ = 205176960.

The previous prime is 513121409. The next prime is 513121463. The reversal of 513121430 is 34121315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28670 + ... + 42990.

It is an arithmetic number, because the mean of its divisors is an integer number (57746304).

Almost surely, 2^513121430 is an apocalyptic number.

513121430 is a deficient number, since it is larger than the sum of its proper divisors (410819434).

513121430 is a wasteful number, since it uses less digits than its factorization.

513121430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17911.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 513121430 is about 22652.1837799361. The cubic root of 513121430 is about 800.5836522091.

Adding to 513121430 its reverse (34121315), we get a palindrome (547242745).

The spelling of 513121430 in words is "five hundred thirteen million, one hundred twenty-one thousand, four hundred thirty".