1010223100391 has 2 divisors, whose sum is σ = 1010223100392. Its totient is φ = 1010223100390.

The previous prime is 1010223100387. The next prime is 1010223100433. The reversal of 1010223100391 is 1930013220101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1010223100391 - 2² = 1010223100387 is a prime.

It is a super-3 number, since 3×1010223100391³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010223102391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505111550195 + 505111550196.

It is an arithmetic number, because the mean of its divisors is an integer number (505111550196).

Almost surely, 2^{1010223100391} is an apocalyptic number.

1010223100391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010223100391 is an equidigital number, since it uses as much as digits as its factorization.

1010223100391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 1010223100391 its reverse (1930013220101), we get a palindrome (2940236320492).

The spelling of 1010223100391 in words is "one trillion, ten billion, two hundred twenty-three million, one hundred thousand, three hundred ninety-one".