1031201123587 has 2 divisors, whose sum is σ = 1031201123588. Its totient is φ = 1031201123586.

The previous prime is 1031201123581. The next prime is 1031201123629. The reversal of 1031201123587 is 7853211021301.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031201123587 is a prime.

It is not a weakly prime, because it can be changed into another prime (1031201123581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515600561793 + 515600561794.

It is an arithmetic number, because the mean of its divisors is an integer number (515600561794).

Almost surely, 2^{1031201123587} is an apocalyptic number.

1031201123587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031201123587 is an equidigital number, since it uses as much as digits as its factorization.

1031201123587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

Adding to 1031201123587 its reverse (7853211021301), we get a palindrome (8884412144888).

The spelling of 1031201123587 in words is "one trillion, thirty-one billion, two hundred one million, one hundred twenty-three thousand, five hundred eighty-seven".