513020420342 has 32 divisors (see below), whose sum is σ = 793718114400. Its totient is φ = 248507965440.

The previous prime is 513020420329. The next prime is 513020420351. The reversal of 513020420342 is 243024020315.

It is a super-4 number, since 4×513020420342⁴ (a number of 48 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77951492 + ... + 77958072.

It is an arithmetic number, because the mean of its divisors is an integer number (24803691075).

Almost surely, 2^513020420342 is an apocalyptic number.

513020420342 is a deficient number, since it is larger than the sum of its proper divisors (280697694058).

513020420342 is a wasteful number, since it uses less digits than its factorization.

513020420342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10976.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 513020420342 its reverse (243024020315), we get a palindrome (756044440657).

The spelling of 513020420342 in words is "five hundred thirteen billion, twenty million, four hundred twenty thousand, three hundred forty-two".