513213104123542 has 8 divisors (see below), whose sum is σ = 770380340571216. Its totient is φ = 256419657266472.

The previous prime is 513213104123417. The next prime is 513213104123569. The reversal of 513213104123542 is 245321401312315.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93447394218 + ... + 93447399709.

It is an arithmetic number, because the mean of its divisors is an integer number (96297542571402).

Almost surely, 2^{513213104123542} is an apocalyptic number.

513213104123542 is a deficient number, since it is larger than the sum of its proper divisors (257167236447674).

513213104123542 is a wasteful number, since it uses less digits than its factorization.

513213104123542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186894795302.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 513213104123542 its reverse (245321401312315), we get a palindrome (758534505435857).

The spelling of 513213104123542 in words is "five hundred thirteen trillion, two hundred thirteen billion, one hundred four million, one hundred twenty-three thousand, five hundred forty-two".