88304311021 has 2 divisors, whose sum is σ = 88304311022. Its totient is φ = 88304311020.

The previous prime is 88304311001. The next prime is 88304311093. The reversal of 88304311021 is 12011340388.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83298040996 + 5006270025 = 288614^2 + 70755^2 .

It is a cyclic number.

It is not a de Polignac number, because 88304311021 - 2¹¹ = 88304308973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88304311001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44152155510 + 44152155511.

It is an arithmetic number, because the mean of its divisors is an integer number (44152155511).

Almost surely, 2^88304311021 is an apocalyptic number.

It is an amenable number.

88304311021 is a deficient number, since it is larger than the sum of its proper divisors (1).

88304311021 is an equidigital number, since it uses as much as digits as its factorization.

88304311021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 88304311021 in words is "eighty-eight billion, three hundred four million, three hundred eleven thousand, twenty-one".