10202988478091 has 2 divisors, whose sum is σ = 10202988478092. Its totient is φ = 10202988478090.

The previous prime is 10202988478037. The next prime is 10202988478099. The reversal of 10202988478091 is 19087488920201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10202988478091 - 2¹⁸ = 10202988215947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10202988478091.

It is not a weakly prime, because it can be changed into another prime (10202988478099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101494239045 + 5101494239046.

It is an arithmetic number, because the mean of its divisors is an integer number (5101494239046).

Almost surely, 2^{10202988478091} is an apocalyptic number.

10202988478091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10202988478091 is an equidigital number, since it uses as much as digits as its factorization.

10202988478091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 59.

The spelling of 10202988478091 in words is "ten trillion, two hundred two billion, nine hundred eighty-eight million, four hundred seventy-eight thousand, ninety-one".