1098235501087 has 2 divisors, whose sum is σ = 1098235501088. Its totient is φ = 1098235501086.

The previous prime is 1098235501073. The next prime is 1098235501157. The reversal of 1098235501087 is 7801055328901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1098235501087 - 2¹⁹ = 1098234976799 is a prime.

It is a super-2 number, since 2×1098235501087² (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 1098235501087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1098235502087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549117750543 + 549117750544.

It is an arithmetic number, because the mean of its divisors is an integer number (549117750544).

Almost surely, 2^{1098235501087} is an apocalyptic number.

1098235501087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098235501087 is an equidigital number, since it uses as much as digits as its factorization.

1098235501087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 49.

The spelling of 1098235501087 in words is "one trillion, ninety-eight billion, two hundred thirty-five million, five hundred one thousand, eighty-seven".