101551325009 has 2 divisors, whose sum is σ = 101551325010. Its totient is φ = 101551325008.

The previous prime is 101551324991. The next prime is 101551325093. The reversal of 101551325009 is 900523155101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100423708609 + 1127616400 = 316897^2 + 33580^2 .

It is an emirp because it is prime and its reverse (900523155101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101551325009 - 2²⁰ = 101550276433 is a prime.

It is a super-2 number, since 2×101551325009² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101551325809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50775662504 + 50775662505.

It is an arithmetic number, because the mean of its divisors is an integer number (50775662505).

Almost surely, 2^101551325009 is an apocalyptic number.

It is an amenable number.

101551325009 is a deficient number, since it is larger than the sum of its proper divisors (1).

101551325009 is an equidigital number, since it uses as much as digits as its factorization.

101551325009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 32.

The spelling of 101551325009 in words is "one hundred one billion, five hundred fifty-one million, three hundred twenty-five thousand, nine".