31321223002049 has 2 divisors, whose sum is σ = 31321223002050. Its totient is φ = 31321223002048.

The previous prime is 31321223002019. The next prime is 31321223002057. The reversal of 31321223002049 is 94020032212313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25820697099649 + 5500525902400 = 5081407^2 + 2345320^2 .

It is a cyclic number.

It is not a de Polignac number, because 31321223002049 - 2¹⁶ = 31321222936513 is a prime.

It is not a weakly prime, because it can be changed into another prime (31321223002019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660611501024 + 15660611501025.

It is an arithmetic number, because the mean of its divisors is an integer number (15660611501025).

Almost surely, 2^{31321223002049} is an apocalyptic number.

It is an amenable number.

31321223002049 is a deficient number, since it is larger than the sum of its proper divisors (1).

31321223002049 is an equidigital number, since it uses as much as digits as its factorization.

31321223002049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 31321223002049 in words is "thirty-one trillion, three hundred twenty-one billion, two hundred twenty-three million, two thousand, forty-nine".