30520223435431 has 16 divisors (see below), whose sum is σ = 31197292416000. Its totient is φ = 29844314404128.

The previous prime is 30520223435369. The next prime is 30520223435543. The reversal of 30520223435431 is 13453432202503.

It is a cyclic number.

It is not a de Polignac number, because 30520223435431 - 2³³ = 30511633500839 is a prime.

It is a super-2 number, since 2×30520223435431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30520223435231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603749745 + ... + 603800293.

It is an arithmetic number, because the mean of its divisors is an integer number (1949830776000).

Almost surely, 2^{30520223435431} is an apocalyptic number.

30520223435431 is a deficient number, since it is larger than the sum of its proper divisors (677068980569).

30520223435431 is a wasteful number, since it uses less digits than its factorization.

30520223435431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61758.

The product of its (nonzero) digits is 259200, while the sum is 37.

Adding to 30520223435431 its reverse (13453432202503), we get a palindrome (43973655637934).

The spelling of 30520223435431 in words is "thirty trillion, five hundred twenty billion, two hundred twenty-three million, four hundred thirty-five thousand, four hundred thirty-one".