1031202200381 has 2 divisors, whose sum is σ = 1031202200382. Its totient is φ = 1031202200380.

The previous prime is 1031202200377. The next prime is 1031202200387. The reversal of 1031202200381 is 1830022021301.

It is a happy number.

1031202200381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 888362800900 + 142839399481 = 942530^2 + 377941^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031202200381 - 2² = 1031202200377 is a prime.

It is a super-2 number, since 2×1031202200381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031202200387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515601100190 + 515601100191.

It is an arithmetic number, because the mean of its divisors is an integer number (515601100191).

Almost surely, 2^{1031202200381} is an apocalyptic number.

It is an amenable number.

1031202200381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031202200381 is an equidigital number, since it uses as much as digits as its factorization.

1031202200381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1031202200381 its reverse (1830022021301), we get a palindrome (2861224221682).

The spelling of 1031202200381 in words is "one trillion, thirty-one billion, two hundred two million, two hundred thousand, three hundred eighty-one".