31123032300203 has 2 divisors, whose sum is σ = 31123032300204. Its totient is φ = 31123032300202.

The previous prime is 31123032300197. The next prime is 31123032300211. The reversal of 31123032300203 is 30200323032113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31123032300203 - 2¹² = 31123032296107 is a prime.

It is a super-2 number, since 2×31123032300203² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31123032300233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15561516150101 + 15561516150102.

It is an arithmetic number, because the mean of its divisors is an integer number (15561516150102).

Almost surely, 2^{31123032300203} is an apocalyptic number.

31123032300203 is a deficient number, since it is larger than the sum of its proper divisors (1).

31123032300203 is an equidigital number, since it uses as much as digits as its factorization.

31123032300203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31123032300203 its reverse (30200323032113), we get a palindrome (61323355332316).

The spelling of 31123032300203 in words is "thirty-one trillion, one hundred twenty-three billion, thirty-two million, three hundred thousand, two hundred three".