1043251111387 has 2 divisors, whose sum is σ = 1043251111388. Its totient is φ = 1043251111386.

The previous prime is 1043251111193. The next prime is 1043251111403. The reversal of 1043251111387 is 7831111523401.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1043251111387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1043251117387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521625555693 + 521625555694.

It is an arithmetic number, because the mean of its divisors is an integer number (521625555694).

Almost surely, 2^{1043251111387} is an apocalyptic number.

1043251111387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043251111387 is an equidigital number, since it uses as much as digits as its factorization.

1043251111387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 37.

Adding to 1043251111387 its reverse (7831111523401), we get a palindrome (8874362634788).

The spelling of 1043251111387 in words is "one trillion, forty-three billion, two hundred fifty-one million, one hundred eleven thousand, three hundred eighty-seven".