101200099023557 has 2 divisors, whose sum is σ = 101200099023558. Its totient is φ = 101200099023556.

The previous prime is 101200099023523. The next prime is 101200099023593. The reversal of 101200099023557 is 755320990002101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98871084239236 + 2329014784321 = 9943394^2 + 1526111^2 .

It is a cyclic number.

It is not a de Polignac number, because 101200099023557 - 2¹⁸ = 101200098761413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101200099043557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50600049511778 + 50600049511779.

It is an arithmetic number, because the mean of its divisors is an integer number (50600049511779).

Almost surely, 2^{101200099023557} is an apocalyptic number.

It is an amenable number.

101200099023557 is a deficient number, since it is larger than the sum of its proper divisors (1).

101200099023557 is an equidigital number, since it uses as much as digits as its factorization.

101200099023557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170100, while the sum is 44.

The spelling of 101200099023557 in words is "one hundred one trillion, two hundred billion, ninety-nine million, twenty-three thousand, five hundred fifty-seven".