520215431202423 has 12 divisors (see below), whose sum is σ = 819733406743368. Its totient is φ = 315282079516560.

The previous prime is 520215431202367. The next prime is 520215431202437. The reversal of 520215431202423 is 324202134512025.

520215431202423 is a `hidden beast` number, since 5 + 2 + 0 + 2 + 15 + 431 + 202 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 520215431202423 - 2⁸ = 520215431202167 is a prime.

It is a super-2 number, since 2×520215431202423² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520215431202463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2627350662540 + ... + 2627350662737.

It is an arithmetic number, because the mean of its divisors is an integer number (68311117228614).

Almost surely, 2^{520215431202423} is an apocalyptic number.

520215431202423 is a deficient number, since it is larger than the sum of its proper divisors (299517975540945).

520215431202423 is a wasteful number, since it uses less digits than its factorization.

520215431202423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5254701325294 (or 5254701325291 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 520215431202423 its reverse (324202134512025), we get a palindrome (844417565714448).

The spelling of 520215431202423 in words is "five hundred twenty trillion, two hundred fifteen billion, four hundred thirty-one million, two hundred two thousand, four hundred twenty-three".