30515234423444 has 6 divisors (see below), whose sum is σ = 53401660241034. Its totient is φ = 15257617211720.

The previous prime is 30515234423393. The next prime is 30515234423447. The reversal of 30515234423444 is 44432443251503.

It can be written as a sum of positive squares in only one way, i.e., 19092862333444 + 11422372090000 = 4369538^2 + 3379700^2 .

It is a super-2 number, since 2×30515234423444² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30515234423395 and 30515234423404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30515234423447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3814404302927 + ... + 3814404302934.

It is an arithmetic number, because the mean of its divisors is an integer number (8900276706839).

Almost surely, 2^{30515234423444} is an apocalyptic number.

It is an amenable number.

30515234423444 is a deficient number, since it is larger than the sum of its proper divisors (22886425817590).

30515234423444 is a wasteful number, since it uses less digits than its factorization.

30515234423444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7628808605865 (or 7628808605863 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 44.

Adding to 30515234423444 its reverse (44432443251503), we get a palindrome (74947677674947).

The spelling of 30515234423444 in words is "thirty trillion, five hundred fifteen billion, two hundred thirty-four million, four hundred twenty-three thousand, four hundred forty-four".