98121011 has 2 divisors, whose sum is σ = 98121012. Its totient is φ = 98121010.

The previous prime is 98120927. The next prime is 98121041. The reversal of 98121011 is 11012189.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98121011 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (98121041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49060505 + 49060506.

It is an arithmetic number, because the mean of its divisors is an integer number (49060506).

Almost surely, 2^98121011 is an apocalyptic number.

98121011 is a deficient number, since it is larger than the sum of its proper divisors (1).

98121011 is an equidigital number, since it uses as much as digits as its factorization.

98121011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The square root of 98121011 is about 9905.6050294770. The cubic root of 98121011 is about 461.2333176498.

The spelling of 98121011 in words is "ninety-eight million, one hundred twenty-one thousand, eleven".