20310232249 has 2 divisors, whose sum is σ = 20310232250. Its totient is φ = 20310232248.

The previous prime is 20310232181. The next prime is 20310232253. The reversal of 20310232249 is 94223201302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18990218025 + 1320014224 = 137805^2 + 36332^2 .

It is a cyclic number.

It is not a de Polignac number, because 20310232249 - 2⁷ = 20310232121 is a prime.

It is not a weakly prime, because it can be changed into another prime (20310232259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155116124 + 10155116125.

It is an arithmetic number, because the mean of its divisors is an integer number (10155116125).

Almost surely, 2^20310232249 is an apocalyptic number.

It is an amenable number.

20310232249 is a deficient number, since it is larger than the sum of its proper divisors (1).

20310232249 is an equidigital number, since it uses as much as digits as its factorization.

20310232249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 20310232249 in words is "twenty billion, three hundred ten million, two hundred thirty-two thousand, two hundred forty-nine".