1031203300121 has 2 divisors, whose sum is σ = 1031203300122. Its totient is φ = 1031203300120.

The previous prime is 1031203300111. The next prime is 1031203300133. The reversal of 1031203300121 is 1210033021301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 622262234896 + 408941065225 = 788836^2 + 639485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031203300121 is a prime.

It is a super-2 number, since 2×1031203300121² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1031203300121.

It is not a weakly prime, because it can be changed into another prime (1031203300111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515601650060 + 515601650061.

It is an arithmetic number, because the mean of its divisors is an integer number (515601650061).

Almost surely, 2^{1031203300121} is an apocalyptic number.

It is an amenable number.

1031203300121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031203300121 is an equidigital number, since it uses as much as digits as its factorization.

1031203300121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1031203300121 its reverse (1210033021301), we get a palindrome (2241236321422).

The spelling of 1031203300121 in words is "one trillion, thirty-one billion, two hundred three million, three hundred thousand, one hundred twenty-one".