1013203434251 has 2 divisors, whose sum is σ = 1013203434252. Its totient is φ = 1013203434250.

The previous prime is 1013203434197. The next prime is 1013203434377. The reversal of 1013203434251 is 1524343023101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1013203434251 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1013203434751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506601717125 + 506601717126.

It is an arithmetic number, because the mean of its divisors is an integer number (506601717126).

Almost surely, 2^{1013203434251} is an apocalyptic number.

1013203434251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013203434251 is an equidigital number, since it uses as much as digits as its factorization.

1013203434251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 1013203434251 its reverse (1524343023101), we get a palindrome (2537546457352).

The spelling of 1013203434251 in words is "one trillion, thirteen billion, two hundred three million, four hundred thirty-four thousand, two hundred fifty-one".