102011887004491 has 2 divisors, whose sum is σ = 102011887004492. Its totient is φ = 102011887004490.

The previous prime is 102011887004483. The next prime is 102011887004557. The reversal of 102011887004491 is 194400788110201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102011887004491 - 2³ = 102011887004483 is a prime.

It is not a weakly prime, because it can be changed into another prime (102011887002491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51005943502245 + 51005943502246.

It is an arithmetic number, because the mean of its divisors is an integer number (51005943502246).

Almost surely, 2^{102011887004491} is an apocalyptic number.

102011887004491 is a deficient number, since it is larger than the sum of its proper divisors (1).

102011887004491 is an equidigital number, since it uses as much as digits as its factorization.

102011887004491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 46.

The spelling of 102011887004491 in words is "one hundred two trillion, eleven billion, eight hundred eighty-seven million, four thousand, four hundred ninety-one".