30311254051145 has 16 divisors (see below), whose sum is σ = 38518912348560. Its totient is φ = 22819160438784.

The previous prime is 30311254051123. The next prime is 30311254051151. The reversal of 30311254051145 is 54115045211303.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 110997584569 + 30200256466576 = 333163^2 + 5495476^2 .

It is a cyclic number.

It is not a de Polignac number, because 30311254051145 - 2⁴² = 25913207540041 is a prime.

It is a super-2 number, since 2×30311254051145² (a number of 28 digits) contains 22 as substring.

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, 26234660 + ... + 27365669.

It is an arithmetic number, because the mean of its divisors is an integer number (2407432021785).

Almost surely, 2^{30311254051145} is an apocalyptic number.

It is an amenable number.

30311254051145 is a deficient number, since it is larger than the sum of its proper divisors (8207658297415).

30311254051145 is a wasteful number, since it uses less digits than its factorization.

30311254051145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53607004.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 30311254051145 its reverse (54115045211303), we get a palindrome (84426299262448).

The spelling of 30311254051145 in words is "thirty trillion, three hundred eleven billion, two hundred fifty-four million, fifty-one thousand, one hundred forty-five".