31350628201 has 2 divisors, whose sum is σ = 31350628202. Its totient is φ = 31350628200.

The previous prime is 31350628189. The next prime is 31350628223. The reversal of 31350628201 is 10282605313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29824944601 + 1525683600 = 172699^2 + 39060^2 .

It is a cyclic number.

It is not a de Polignac number, because 31350628201 - 2¹⁹ = 31350103913 is a prime.

It is a super-3 number, since 3×31350628201³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (31350628301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15675314100 + 15675314101.

It is an arithmetic number, because the mean of its divisors is an integer number (15675314101).

Almost surely, 2^31350628201 is an apocalyptic number.

It is an amenable number.

31350628201 is a deficient number, since it is larger than the sum of its proper divisors (1).

31350628201 is an equidigital number, since it uses as much as digits as its factorization.

31350628201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 31350628201 in words is "thirty-one billion, three hundred fifty million, six hundred twenty-eight thousand, two hundred one".