30999976892273 has 2 divisors, whose sum is σ = 30999976892274. Its totient is φ = 30999976892272.

The previous prime is 30999976892239. The next prime is 30999976892327. The reversal of 30999976892273 is 37229867999903.

Together with next prime (30999976892327) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24963383417569 + 6036593474704 = 4996337^2 + 2456948^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30999976892273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30999976892191 and 30999976892200.

It is not a weakly prime, because it can be changed into another prime (30999976892473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15499988446136 + 15499988446137.

It is an arithmetic number, because the mean of its divisors is an integer number (15499988446137).

Almost surely, 2^{30999976892273} is an apocalyptic number.

It is an amenable number.

30999976892273 is a deficient number, since it is larger than the sum of its proper divisors (1).

30999976892273 is an equidigital number, since it uses as much as digits as its factorization.

30999976892273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4999796928, while the sum is 83.

The spelling of 30999976892273 in words is "thirty trillion, nine hundred ninety-nine billion, nine hundred seventy-six million, eight hundred ninety-two thousand, two hundred seventy-three".