30403313453273 has 2 divisors, whose sum is σ = 30403313453274. Its totient is φ = 30403313453272.

The previous prime is 30403313453269. The next prime is 30403313453321. The reversal of 30403313453273 is 37235431330403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27751486849024 + 2651826604249 = 5267968^2 + 1628443^2 .

It is a cyclic number.

It is not a de Polignac number, because 30403313453273 - 2² = 30403313453269 is a prime.

It is a super-2 number, since 2×30403313453273² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30403313453273.

It is not a weakly prime, because it can be changed into another prime (30403313453213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15201656726636 + 15201656726637.

It is an arithmetic number, because the mean of its divisors is an integer number (15201656726637).

Almost surely, 2^{30403313453273} is an apocalyptic number.

It is an amenable number.

30403313453273 is a deficient number, since it is larger than the sum of its proper divisors (1).

30403313453273 is an equidigital number, since it uses as much as digits as its factorization.

30403313453273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 41.

Adding to 30403313453273 its reverse (37235431330403), we get a palindrome (67638744783676).

The spelling of 30403313453273 in words is "thirty trillion, four hundred three billion, three hundred thirteen million, four hundred fifty-three thousand, two hundred seventy-three".